CASP3

UniProt ID: P42574
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

CASP3 (caspase-3; apopain/CPP32/Yama) is the principal executioner cysteine-aspartic protease of apoptosis in human cells. Synthesized as an inactive zymogen, it is activated by proteolytic cleavage by initiator caspases (CASP8, CASP9, CASP10) and granzyme B into a heterotetramer of two p17/p12 heterodimers with a catalytic cysteine. It is a cysteine-type endopeptidase (EC 3.4.22.56) that cleaves substrates strictly after aspartate residues, with a preferred Asp-X-X-Asp recognition motif. During the execution/demolition phase of apoptosis it cleaves hundreds of cellular substrates, including PARP1, the ICAD/DFF45 inhibitor of the CAD/DFF40 DNA-fragmentation nuclease, cytoskeletal and junctional proteins, and numerous signaling proteins, thereby dismantling the dying cell and promoting phosphatidylserine exposure for efferocytosis. Beyond classical apoptosis, caspase-3 cleaves gasdermin-E (GSDME/DFNA5) to switch cells to pyroptosis, processes cytokines such as IL-18, and restrains innate antiviral signaling by cleaving cGAS, MAVS, IRF3, and NF-kB subunits. It also has non-lethal roles, contributing to differentiation programs (e.g., erythroid, keratinocyte, neuronal) through limited substrate cleavage. Caspase-3 acts mainly in the cytoplasm/cytosol but its active form is also found in the nucleus during apoptosis; its activity is restrained by inhibitors including XIAP and BIRC6 and by S-nitrosylation of the catalytic cysteine.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005737 cytoplasm
IBA
GO_REF:0000033
MODIFY
Summary: CASP3 acts in a soluble cytosolic pool during proteolytic signaling.
Reason: CASP3 acts in a soluble cytosolic pool during proteolytic signaling. Refine the broad cytoplasm annotation to the supported cytosol compartment; nuclear or extracellular pools are represented separately.
Propagation Review
Root cause: TERM SCOPING PROBLEM
Failure modes: GRANULARITY MISMATCH
Sources checked:
PANTHER:PTN000047947 SUPPORTS TRANSFER
WITH/FROM source traced; retained conserved biology is refined to the more specific target-supported term, without changing the inferred evolutionary placement.
Proposed replacements: cytosol
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Cytoplasm
GO:0006915 apoptotic process
IBA
GO_REF:0000033
MODIFY
Summary: CASP3 directly performs proteolytic steps of apoptotic execution.
Reason: The target effector protease directly performs the controlled substrate breakdown of apoptotic execution. Refine apoptotic process to the already represented GO:0097194 execution phase, supported by target-specific substrate/nuclear-change evidence rather than C14A membership, which also includes initiator and inflammatory caspases. Human-enzyme PMID:18723680 directly compares substrate cleavage by executioner caspases.
Propagation Review
Root cause: TERM SCOPING PROBLEM
Failure modes: GRANULARITY MISMATCH
Sources checked:
PANTHER:PTN000047947 SUPPORTS TRANSFER
The conserved apoptotic-process assertion is retained; independently inspected target execution evidence supports finer stage resolution. This does not reinterpret family-wide C14A membership as an executioner-specific activity or relocate a PAINT ancestor.
Proposed replacements: execution phase of apoptosis
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0004197 cysteine-type endopeptidase activity
IBA
GO_REF:0000033
ACCEPT
Summary: Caspase-3 is a cysteine-type endopeptidase (EC 3.4.22.56) that cleaves substrates after aspartate residues; this is its core molecular function.
Reason: This is the central, well-established molecular function of caspase-3, supported by phylogenetic inference, biochemical purification, and crystal structures. It should be retained as a core function.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4. It has a preferred cleavage sequence of Asp-Xaa-Xaa-Asp-|-
PMID:7596430
suggesting that apopain/CPP32 is important for the initiation of apoptotic cell death.
file:human/CASP3/CASP3-deep-research-falcon.md
the most proteolytically proficient executioner of programmed cell death
GO:0006508 proteolysis
IBA
GO_REF:0000033
ACCEPT
Summary: CASP3 directly catalyzes proteolysis of diverse substrates.
Reason: CASP3 directly catalyzes proteolysis of diverse substrates. This process is core and spans destructive and regulatory cleavage, so no single narrower protein-processing process replaces its full scope.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0031264 death-inducing signaling complex
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: The PAINT-supported death-inducing signaling complex association need not imply an initiator-caspase role.
Reason: The PAINT-supported death-inducing signaling complex association need not imply an initiator-caspase role. PMID:17518537 reports a Fas/FADD/caspase-8/c-FLIP/caspase-3 complex in rat spinal injury; retain the conserved contextual association without asserting direct binary death-receptor binding.
Supporting Evidence:
GO:0097194 execution phase of apoptosis
IBA
GO_REF:0000033
ACCEPT
Summary: Caspase-3 is the major executioner caspase responsible for the demolition/execution phase of apoptosis.
Reason: This is a precise and core biological process term for caspase-3, supported by phylogenetic inference and experimental evidence that caspase-3 dominates the demolition phase.
Supporting Evidence:
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0008047 enzyme activator activity
IBA
GO_REF:0000033
MODIFY
Summary: Proteolytic activation of substrates is real, but GO enzyme activator activity is restricted to direct activation without covalent modification.
Reason: Proteolytic activation of substrates is real, but GO enzyme activator activity is restricted to direct activation without covalent modification. Caspase cleavage belongs to cysteine-type endopeptidase activity, not noncovalent enzyme activation.
Propagation Review
Root cause: TERM SCOPING PROBLEM
Failure modes: ROLE CONFLATION
Sources checked:
PANTHER:PTN008499732 UNRESOLVED
WITH/FROM source traced; the issue is proteolytic versus noncovalent activation, not loss of the caspase enzyme.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0043525 positive regulation of neuron apoptotic process
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: As the executioner caspase, caspase-3 promotes neuronal apoptosis (e.g., developmental neuronal death), a tissue-specific instance of its general apoptotic execution role.
Reason: This is a genuine but downstream, tissue-specific manifestation of the core apoptotic execution function rather than a distinct molecular activity. Retained as non-core.
Supporting Evidence:
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0030182 neuron differentiation
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: neuron differentiation: retain with the primary study's context and species limits.
Reason: The PAINT assertion traces to PANTHER:PTN002573018, with rat Casp3 experimental grounding. This is an inherited-node judgment, not a donor-count or pairwise-similarity test; no target-specific loss is inferred. The rat donor publication PMID:15248196 distinguishes active-caspase-3-positive proliferating/differentiating cerebellar cells from apoptotic cells. Independent PMID:16103108 goes beyond colocalization: caspase activity rises in nonapoptotic differentiating neuronal populations and peptide inhibition impairs neurosphere differentiation. The inhibitor experiment is not a caspase-3-specific genetic knockout, but together with the PAINT/conserved caspase context it supports a non-core neuronal differentiation role, not universal dependence of all neurons. The abstract does not specify the neurosphere species, so no direct human or mouse assay is invented.
Supporting Evidence:
PMID:16103108
peptide inhibition of protease activity effectively inhibits the differentiation process in a cultured neurosphere model.
PMID:15248196
Proliferative (Ki67-positive) and differentiated (TUJ1-positive) cells within the EGL exhibited a cytosolic expression of caspase-3
GO:0030216 keratinocyte differentiation
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: Caspase-3 contributes to keratinocyte differentiation (cornification), a non-apoptotic tissue-specific role inferred phylogenetically.
Reason: This is a genuine but downstream, tissue-specific differentiation role and not the core protease/apoptotic-execution function. Retained as non-core.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Triggers cell adhesion in sympathetic neurons through RET cleavage
GO:0030218 erythrocyte differentiation
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: Caspase-3 is activated during terminal erythroid differentiation; its activity is restrained (e.g., Hsp70 protecting GATA-1) so that differentiation proceeds without apoptosis.
Reason: A genuine non-apoptotic role in erythropoiesis, supported experimentally, but downstream of and dependent on the core protease function. Retained as non-core.
Supporting Evidence:
PMID:17167422
Caspase-3 is activated during both terminal differentiation and erythropoietin-starvation-induced apoptosis of human erythroid precursors.
GO:0004197 cysteine-type endopeptidase activity
IEA
GO_REF:0000120
ACCEPT
Summary: Electronic annotation of the core cysteine-type endopeptidase activity, consistent with experimental and phylogenetic evidence.
Reason: Correct core molecular function; the IEA agrees with the IBA and IDA evidence for the same term.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4. It has a preferred cleavage sequence of Asp-Xaa-Xaa-Asp-|-
GO:0005737 cytoplasm
IEA
GO_REF:0000120
MODIFY
Summary: CASP3 acts in a soluble cytosolic pool during proteolytic signaling.
Reason: CASP3 acts in a soluble cytosolic pool during proteolytic signaling. Refine the broad cytoplasm annotation to the supported cytosol compartment; nuclear or extracellular pools are represented separately.
Proposed replacements: cytosol
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Cytoplasm
GO:0006508 proteolysis
IEA
GO_REF:0000120
ACCEPT
Summary: CASP3 directly catalyzes proteolysis of diverse substrates.
Reason: CASP3 directly catalyzes proteolysis of diverse substrates. This process is core and spans destructive and regulatory cleavage, so no single narrower protein-processing process replaces its full scope.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0006915 apoptotic process
IEA
GO_REF:0000117
MODIFY
Summary: CASP3 directly performs proteolytic steps of apoptotic execution.
Reason: The target effector protease directly performs the controlled substrate breakdown of apoptotic execution. Refine apoptotic process to the already represented GO:0097194 execution phase, supported by target-specific substrate/nuclear-change evidence rather than C14A membership, which also includes initiator and inflammatory caspases. Human-enzyme PMID:18723680 directly compares substrate cleavage by executioner caspases.
Proposed replacements: execution phase of apoptosis
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0008234 cysteine-type peptidase activity
IEA
GO_REF:0000120
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0051604 protein maturation
IEA
GO_REF:0000117
ACCEPT
Summary: Caspase-3 matures/processes substrate proteins by limited proteolysis (e.g., activating gasdermin-E, processing cytokines).
Reason: Protein maturation is a valid process realization of caspase-3 activation-by-cleavage of substrates; supported by experimental gasdermin/cytokine processing.
Supporting Evidence:
PMID:28459430
GSDME was specifically cleaved by caspase-3 in its linker, generating a GSDME-N fragment that perforates membranes and thereby induces pyroptosis.
GO:0072734 cellular response to staurosporine
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Caspase-3 is activated during staurosporine-induced apoptosis (a standard intrinsic-apoptosis trigger).
Reason: A stimulus/response context term rather than a core function; caspase-3 acts as the executioner downstream of staurosporine-induced intrinsic apoptosis. Retained as non-core.
Supporting Evidence:
PMID:22253444
the main processing of pro-caspase-3 takes place in the cytosol of both cells lines analyzed even if caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0005515 protein binding
IPI
PMID:11257232
Structural basis for the inhibition of caspase-3 by XIAP.
REMOVE
Summary: XIAP BIR2 binds and inhibits caspase-3, but this is inhibitor binding to CASP3 rather than a distinct CASP3 molecular function.
Reason: The structure supports an XIAP-caspase-3 inhibitory complex. For CASP3, the generic protein binding row is only a physical-interaction assertion and should not be kept or converted to a partner-specific term.
Supporting Evidence:
PMID:11257232
We report the crystal structure of the second BIR domain of XIAP (BIR2) in complex with caspase-3, at a resolution of 2.7 A, revealing the structural basis for inhibition.
GO:0005515 protein binding
IPI
PMID:16227597
A-kinase-anchoring protein 95 functions as a potential carri...
REMOVE
Summary: AKAP95 associates with active caspase-3 during nuclear translocation, but the source presents AKAP95 as a carrier rather than identifying a new CASP3 catalytic function.
Reason: This row is a bare CASP3-AKAP95 physical-interaction assertion. The interaction should not be inflated into a transport MF for CASP3, which is the cargo, or into a substrate-specific MF from binding evidence alone.
Supporting Evidence:
PMID:16227597
These results indicate that AKAP95 is a potential carrier protein for active caspase 3 from the cytoplasm into the nuclei in apoptotic cells.
GO:0005515 protein binding
IPI
PMID:16501604
Protein kinase WNK3 increases cell survival in a caspase-3-d...
REMOVE
Summary: WNK3 interacts with procaspase-3 and Hsp70 in a cell-survival pathway, but this interaction does not resolve a more informative CASP3 molecular function.
Reason: The cited paper supports regulation of procaspase-3 activation by WNK3, not an additional CASP3 activity. The generic protein binding row is therefore an uninformative physical-interaction assertion.
Supporting Evidence:
PMID:16501604
The mechanism of WNK3 action involves interaction with procaspase-3 and heat-shock protein 70.
GO:0005515 protein binding
IPI
PMID:16530191
N-myristoyltransferase 2 expression in human colon cancer: c...
MODIFY
Summary: CASP3 interacts with NMT2, and subsequent NMT work resolves NMT2 as a caspase-3 cleavage substrate.
Reason: The original NMT2 interaction is better represented by the core CASP3 cysteine-type endopeptidase activity because NMT2 is proteolytically cleaved by caspase-3. A partner-specific binding MF should not be invented from this IPI row.
Supporting Evidence:
PMID:16530191
caspase-3 interacts with NMT2
PMID:23150525
cleavage of NMT1 at Asp-72 precedes the cleavage of NMT2 by caspase-3 mainly at Asp-25.
GO:0005515 protein binding
IPI
PMID:17167422
Hsp70 regulates erythropoiesis by preventing caspase-3-media...
MODIFY
Summary: Hsp70 prevents active caspase-3 from cleaving the erythroid transcription factor GATA-1.
Reason: The informative CASP3 activity in this source is GATA-1 proteolysis. Replace generic protein binding with the core cysteine-type endopeptidase activity rather than retaining an unqualified binding row.
Supporting Evidence:
PMID:17167422
Hsp70 prevents active caspase-3 from cleaving GATA-1 and inducing apoptosis.
GO:0005515 protein binding
IPI
PMID:17544405
Caspase-3-mediated cleavage of Akt: involvement of non-conse...
MODIFY
Summary: Akt1 is a direct in vitro caspase-3 cleavage substrate.
Reason: The interaction represents substrate cleavage by caspase-3 and is better captured as cysteine-type endopeptidase activity than as generic protein binding.
Supporting Evidence:
PMID:17544405
Akt1 is cleaved in vitro at the caspase-3 consensus site DQDD(456) downward arrow SM.
GO:0005515 protein binding
IPI
PMID:17606900
Thioredoxin is required for S-nitrosation of procaspase-3 an...
REMOVE
Summary: Thioredoxin-1 transnitrosates procaspase-3 and inhibits apoptosis; this is modification of procaspase-3 rather than a CASP3 molecular activity.
Reason: The row captures a thioredoxin-procaspase-3 physical interaction. It does not support a more specific CASP3 function, so the generic protein binding assertion should be removed.
Supporting Evidence:
PMID:17606900
specific transnitrosation reaction between procaspase-3 and thioredoxin-1 (Trx) occurs in cultured human T cells
GO:0005515 protein binding
IPI
PMID:18723680
Executioner caspase-3 and caspase-7 are functionally distinc...
MODIFY
Summary: Caspase-3 cleaves several natural substrates that are differentially processed by caspase-3 versus caspase-7.
Reason: The paper experimentally distinguishes caspase-3 substrate proteolysis, so cysteine-type endopeptidase activity is the informative replacement for a generic substrate-binding row.
Supporting Evidence:
PMID:18723680
Here we show that caspase-3 and caspase-7 exhibit differential activity toward multiple substrate proteins, including Bid, XIAP, gelsolin, caspase-6, and cochaperone p23.
GO:0005515 protein binding
IPI
PMID:19273858
S-nitrosylation of XIAP compromises neuronal survival in Par...
REMOVE
Summary: S-nitrosylation impairs XIAP anticaspase-3 activity by blocking XIAP binding to caspase-3.
Reason: This source describes regulation of XIAP's inhibitory binding to caspase-3. The CASP3 side is only the physical target of XIAP binding, so this should not remain as generic protein binding.
Supporting Evidence:
PMID:19273858
XIAP S-nitrosylation compromised its antiapoptotic function by inhibiting its anticaspase-3 activity.
GO:0005515 protein binding
IPI
PMID:21726810
Caspase-2-mediated cleavage of Mdm2 creates a p53-induced po...
REMOVE
Summary: Mdm2 is established in this paper as a caspase-2 cleavage target; the CASP3 IPI does not support a more informative CASP3 MF.
Reason: The cached full text centers on caspase-2-dependent Mdm2 cleavage, not a CASP3 activity. Any CASP3-Mdm2 contact in the source is therefore only a bare interaction row.
Supporting Evidence:
PMID:21726810
These data establish Mdm2 as a cleavage target of Caspase-2
GO:0005515 protein binding
IPI
PMID:21988832
Toward an understanding of the protein interaction network o...
REMOVE
Summary: This row comes from a human liver yeast two-hybrid interactome map.
Reason: The source is a large interaction screen and supplies no CASP3-specific catalytic or regulatory molecular function. The generic protein binding assertion should be removed under the current policy.
Supporting Evidence:
PMID:21988832
In this study, we map the interactions of an unbiased selection of 5026 human liver expression proteins by a yeast two-hybrid (Y2H) technology and establish a human liver protein interaction network (HLPN)
GO:0005515 protein binding
IPI
PMID:23150525
Regulation of co- and post-translational myristoylation of p...
MODIFY
Summary: N-myristoyltransferases are caspase substrates during apoptosis, with NMT2 cleaved mainly by caspase-3.
Reason: The NMT interaction is a substrate relationship resolved by cleavage, so the informative CASP3 activity is cysteine-type endopeptidase activity rather than generic protein binding.
Supporting Evidence:
PMID:23150525
cleavage of NMT1 at Asp-72 precedes the cleavage of NMT2 by caspase-3 mainly at Asp-25.
GO:0005515 protein binding
IPI
PMID:25241761
Using an in situ proximity ligation assay to systematically ...
REMOVE
Summary: This row comes from systematic in situ proximity-ligation profiling of pathway protein-protein interactions.
Reason: A pathway-scale proximity hit is a bare interaction assertion for CASP3 and does not support a more informative CASP3 molecular function.
Supporting Evidence:
PMID:25241761
Using an in situ proximity ligation assay to systematically profile endogenous protein-protein interactions in a pathway network.
GO:0005515 protein binding
IPI
PMID:28514442
Architecture of the human interactome defines protein commun...
REMOVE
Summary: This row comes from the proteome-scale BioPlex 2.0 AP-MS interaction map.
Reason: The source is a broad co-complex interactome screen. It does not by itself establish an informative CASP3 molecular function beyond a physical association.
Supporting Evidence:
PMID:28514442
Architecture of the human interactome defines protein communities and disease networks.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: This row comes from HuRI, a systematic human binary interactome map.
Reason: A yeast-two-hybrid HuRI edge is a bare interaction assertion and does not establish a specific CASP3 molecular activity.
Supporting Evidence:
PMID:32296183
A reference map of the human binary protein interactome.
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
REMOVE
Summary: This row comes from a systematic neurodegenerative-disease protein interactome map.
Reason: The source reports a candidate physical-interaction network, not a CASP3-specific catalytic or regulatory activity. The generic protein binding annotation should be removed.
Supporting Evidence:
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative Disease Proteins and Uncovers Widespread Protein Aggregation in Affected Brains.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
REMOVE
Summary: This row comes from a proteome-scale, cell-line-specific BioPlex AP-MS interaction network.
Reason: The BioPlex interaction is a generic co-complex assertion that does not resolve a CASP3 molecular function more informative than protein binding.
Supporting Evidence:
PMID:33961781
Through affinity-purification mass spectrometry, we have created two proteome-scale, cell-line-specific interaction networks.
GO:0005515 protein binding
IPI
PMID:38884001
Mapping adipocyte interactome networks by HaloTag-enrichment...
REMOVE
Summary: This row comes from a HaloTag AP-MS adipocyte protein-complex screen.
Reason: The source is a method-driven interactome map and does not support a CASP3 catalytic function or another specific CASP3 molecular activity.
Supporting Evidence:
PMID:38884001
Mapping adipocyte interactome networks by HaloTag-enrichment-mass spectrometry.
GO:0005515 protein binding
IPI
PMID:7596430
Identification and inhibition of the ICE/CED-3 protease nece...
MODIFY
Summary: Apopain/CPP32 was purified as the protease responsible for PARP cleavage during apoptosis.
Reason: PARP binding is a substrate context for the core caspase-3 protease activity. Replace the unqualified binding term with cysteine-type endopeptidase activity.
Supporting Evidence:
PMID:7596430
Identification and inhibition of the ICE/CED-3 protease necessary for mammalian apoptosis.
GO:0001554 luteolysis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: luteolysis: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The traced rat corpus-luteum study measures luteal apoptosis over regression, uses an active-caspase-3 antibody, and perturbs ER stress with TUDCA in PGF2alpha-treated luteal cells. This supports the conserved apoptotic-effector contribution to structural luteolysis. It does not establish identical upstream endocrine control in humans, a direct steroidogenic activity, or universal necessity of CASP3 for every stage of luteal regression.
Supporting Evidence:
PMID:25332219
the expression levels of CHOP, caspase 12, and caspase 3 were increased during the process of CL regression.
GO:0001666 response to hypoxia
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to hypoxia: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat donor evidence is an altitude-induced hippocampal injury study measuring caspase activity, active caspase-3 and apoptotic cells; its perturbations concern p75NTR/NMDA signaling. A second traced study, PMID:24089674, measures caspase-3 in hypoxic-ischemic neonatal rat brain after miR-210 manipulation. Retain conserved execution within a hypoxic-stress response as non-core, without attributing oxygen sensing or a direct human hippocampal experiment to CASP3.
Supporting Evidence:
PMID:18466900
Exposure to hypobaric hypoxia was found to progressively increase the number of TUNEL positive and Hoechst positive cells along with increase in caspase activity
GO:0002020 protease binding
IEA
GO_REF:0000107
UNDECIDED
Summary: The specific protease binding interaction is unresolved beyond the rat DISC association.
Reason: Provenance: GO_REF:0000107 from UniProtKB:P55213, traced to PMID:17518537 in adult female Fischer rat spinal cord after injury. The rat donor annotation identifies a protease partner (RGD:620945, Casp8). The abstract places caspase-8 and caspase-3 in the SCI-associated DISC but does not expose a pair-specific binding assay that separates protease-substrate encounter from a stable interaction. Normal force retrieval remains abstract-only. The exact experimental distinction cannot be settled from that abstract, and no binding absence, wrong-protein error, or target-species loss is inferred. The source association is genuine; this uncertainty is about the molecular claim and its transfer, not the general apoptotic role of CASP3.
Propagation Review
Root cause: UNRESOLVED
Sources checked:
UniProtKB:P55213 UNRESOLVED
The rat donor annotation identifies a protease partner (RGD:620945, Casp8). The abstract places caspase-8 and caspase-3 in the SCI-associated DISC but does not expose a pair-specific binding assay that separates protease-substrate encounter from a stable interaction. Full assay details remain inaccessible in the normally fetched source.
Supporting Evidence:
PMID:17518537
SCI resulted in FasL and Fas translocation into membrane raft microdomains where Fas associates with the adaptor proteins Fas-associated death domain (FADD), caspase-8, cellular FLIP long form (cFLIPL ), and caspase-3, forming a death-inducing signaling complex (DISC).
GO:0004175 endopeptidase activity
IEA
GO_REF:0000107
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0004190 aspartic-type endopeptidase activity
IEA
GO_REF:0000107
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0004861 cyclin-dependent protein serine/threonine kinase inhibitor activity
IEA
GO_REF:0000107
REMOVE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to cyclin-dependent protein serine/threonine kinase inhibitor activity.
Reason: Cyclin-dependent protein kinase inhibitor activity is not a caspase-3 molecular function; this is an implausible ortholog-transferred MF and should be removed.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Thiol protease that acts as a major effector caspase involved in the execution phase of apoptosis
GO:0005123 death receptor binding
IEA
GO_REF:0000107
UNDECIDED
Summary: The specific death receptor binding interaction is unresolved beyond the rat DISC association.
Reason: Provenance: GO_REF:0000107 from UniProtKB:P55213, traced to PMID:17518537 in adult female Fischer rat spinal cord after injury. The rat donor evidence concerns Fas/CD95 association after spinal cord injury. Its abstract describes a DISC containing Fas, FADD, caspase-8, cFLIP and caspase-3, but does not distinguish a caspase-3/Fas binding interaction from association bridged through the complex. Normal force retrieval remains abstract-only. The exact experimental distinction cannot be settled from that abstract, and no binding absence, wrong-protein error, or target-species loss is inferred. The source association is genuine; this uncertainty is about the molecular claim and its transfer, not the general apoptotic role of CASP3.
Propagation Review
Root cause: UNRESOLVED
Sources checked:
UniProtKB:P55213 UNRESOLVED
The rat donor evidence concerns Fas/CD95 association after spinal cord injury. Its abstract describes a DISC containing Fas, FADD, caspase-8, cFLIP and caspase-3, but does not distinguish a caspase-3/Fas binding interaction from association bridged through the complex. Full assay details remain inaccessible in the normally fetched source.
Supporting Evidence:
PMID:17518537
SCI resulted in FasL and Fas translocation into membrane raft microdomains where Fas associates with the adaptor proteins Fas-associated death domain (FADD), caspase-8, cellular FLIP long form (cFLIPL ), and caspase-3, forming a death-inducing signaling complex (DISC).
GO:0005634 nucleus
IEA
GO_REF:0000107
ACCEPT
Summary: CASP3 has a supported nuclear pool and cleaves nuclear substrates.
Reason: CASP3 has a supported nuclear pool and cleaves nuclear substrates. Retain nucleus because the available localization evidence is not uniformly resolved to a single nuclear subcompartment.
Supporting Evidence:
PMID:22253444
caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0007413 axonal fasciculation
IEA
GO_REF:0000107
UNDECIDED
Summary: axonal fasciculation: the precise claim remains unresolved for a specified source-level reason.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat source PMID:25898930 examines PrP106-126-induced spinal-neuron axonal degeneration, DR6 knockdown and caspase-6 inhibition/siRNA. Its accessible abstract localizes cleaved caspase-3 to somata and reports axonal protection from caspase-6 manipulation. GO:0007413 specifically denotes collecting axons into bundles, not any axonal injury phenotype. The normal force-fetch remained abstract-only; it cannot establish whether a separate caspase-3-dependent bundling assay appears in the full text. Retain uncertainty about this exact transfer, not a claim that CASP3 lacks any neuronal function or that the curator confused paralogs.
Supporting Evidence:
PMID:25898930
cleaved caspase-3 is only enriched in cell bodies, but cleaved caspase-6 is expressed in both cell bodies and axons.
GO:0007611 learning or memory
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to learning or memory.
Reason: Learning or memory is a high-level organismal phenotype (ortholog-transferred), reflecting non-apoptotic synaptic roles; non-core. Independent source audit: Native mouse Alzheimer-model synaptic/memory phenotype; not evidence of an obligatory role in all learning. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:21151119
pharmacological inhibition of caspase-3 activity in Tg2576 mice rescued
GO:0008233 peptidase activity
IEA
GO_REF:0000107
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0008627 intrinsic apoptotic signaling pathway in response to osmotic stress
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to intrinsic apoptotic signaling pathway in response to osmotic stress.
Reason: Intrinsic apoptotic signaling in response to osmotic stress is a stimulus-specific apoptosis context; caspase-3 is the executioner. Non-core. Independent source audit: Native mouse hypertonic medullary apoptosis supports a contextual execution response; the initiating perturbation concerns COX-2/Bad. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:21716255
The abundance of cleaved caspase-3, a marker of apoptosis, was significantly higher in papillary homogenates
GO:0009410 response to xenobiotic stimulus
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to xenobiotic stimulus: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The full rat donor study measures myocardial caspase-3 protein expression during baicalin/octreotide treatment of severe acute pancreatitis. GO:0009410 includes changes in enzyme production and gene expression after a xenobiotic; it does not require that CASP3 be the drug receptor or upstream sensor. Retain the broad contextual response inference, not the authors' cardioprotection mechanism as a CASP3-specific function. Protein abundance is not itself proof of catalytic activation or apoptotic myocardial death; the paper reports very little myocardial apoptosis.
Supporting Evidence:
PMID:18274634
The levels of myocardial tissue Caspase-3 protein expression in the Baicalin-treated group at the points of 6 hours and 12 hours were significantly greater than those of the sham operation group
GO:0009749 response to glucose
IEA
GO_REF:0000107
UNDECIDED
Summary: response to glucose: the precise claim remains unresolved for a specified source-level reason.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The traced rat donor reference concerns HO-1/carbon monoxide/adiponectin treatment in streptozotocin diabetes. Its cached abstract explicitly describes TNF-alpha-induced endothelial caspase-3 activity, not a defined glucose-exposure assay. GO:0009749 requires a glucose stimulus; diabetes alone does not identify that stimulus. The full experimental article remains unavailable in the inspected cache, so a glucose-specific experiment cannot be confirmed or excluded. Retain UNDECIDED rather than treat a diabetic-model context as direct glucose-response evidence or assert that the annotation is false.
Supporting Evidence:
PMID:19356108
Increased adiponectin levels were associated with a decrease in TNF-alpha-induced ICAM-1 and VCAM-1 and caspase 3 activity in endothelial cells
GO:0010038 response to metal ion
IEA
GO_REF:0000107
MODIFY
Summary: response to metal ion: refine to the independently supported cobalt response.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The traced source PMID:18483861 treats cultured rat cardiomyocytes with the platinum drug carboplatin; it does not by itself isolate a free-metal-ion stimulus. Independent PMID:18598848 directly tests cobalt chloride in rat PC12 cells and measures the caspase cascade. Thus the broad metal-response claim is supported at least for cobalt, and is refined to the already-present response-to-cobalt-ion term, rather than removed. This neither attributes metal binding to CASP3 nor equates carboplatin exposure with isolated platinum-ion sensing.
Proposed replacements: response to cobalt ion
Supporting Evidence:
PMID:18598848
limited the activities of the caspase cascades, such as caspase-8, -9 and -3.
GO:0010165 response to X-ray
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to X-ray: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat source compares locally X-irradiated nephritic kidneys with nonirradiated nephritic controls and measures increased active caspase-3/7 together with tissue apoptosis. Retain a conserved executioner response to irradiation as non-core. This is not DNA-repair activity, a direct human kidney experiment, or proof that CASP3 alone mediates the therapeutic effect.
Supporting Evidence:
PMID:18239382
Western blot analysis showed marked increase in active caspase 3 and active caspase 7 expression in irradiated kidneys compared with NTS injection only.
GO:0014069 postsynaptic density
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: postsynaptic density: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P70677|ensembl:ENSMUSP00000147767. This cellular-component transfer traces to mouse Casp3 and PMID:21151119, not to the rat stimulus-response papers. The donor study detects local caspase-3 activity in hippocampal spines and connects it to calcineurin-dependent loss of postsynaptic GluR1. Retain the experimentally curated postsynaptic compartment as a comparative non-core localization. The available abstract supports the local synaptic pool but does not reproduce the full postsynaptic-density fractionation/imaging methods; no direct human localization assay is claimed.
Supporting Evidence:
PMID:21151119
non-apoptotic baseline caspase-3 activity in hippocampal dendritic spines
GO:0016005 phospholipase A2 activator activity
IEA
GO_REF:0000107
REMOVE
Summary: Phospholipase activation downstream of caspase cleavage does not establish the noncovalent molecular-function-regulator activity represented by this enzyme-activator descendant.
Reason: Phospholipase activation downstream of caspase cleavage does not establish the noncovalent molecular-function-regulator activity represented by this enzyme-activator descendant. This does not deny proteolytic activation of phospholipase pathways; the protease activity is retained separately.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Thiol protease that acts as a major effector caspase involved in the execution phase of apoptosis
GO:0021766 hippocampus development
IEA
GO_REF:0000107
UNDECIDED
Summary: hippocampus development: the precise claim remains unresolved for a specified source-level reason.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat donor study measures active/precursor caspase-3 distribution, nuclear morphology and developmental age in CA1, CA3 and dentate gyrus. This is genuine region-specific expression evidence, but the available abstract does not establish the precise contribution of CASP3 to hippocampal anatomical development, as distinct from expression in developing tissue or removal of individual cells. The full article has not been available in the inspected cache. Preserve this contextual process claim as unresolved without rejecting the measured expression or inferring target-specific loss.
Supporting Evidence:
PMID:18459132
there were specific spatio-temporal patterns of expression of active and precursor caspase-3 in the postnatally developing rat hippocampal subregions
GO:0030163 protein catabolic process
IEA
GO_REF:0000107
ACCEPT
Summary: CASP3 directly cleaves and dismantles many protein substrates during apoptotic execution.
Reason: CASP3 directly cleaves and dismantles many protein substrates during apoptotic execution. This supports protein catabolic participation, while regulatory cleavage of individual substrates need not imply their complete degradation.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
GO:0030182 neuron differentiation
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: neuron differentiation: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat donor publication PMID:15248196 distinguishes active-caspase-3-positive proliferating/differentiating cerebellar cells from apoptotic cells. Independent PMID:16103108 goes beyond colocalization: caspase activity rises in nonapoptotic differentiating neuronal populations and peptide inhibition impairs neurosphere differentiation. The inhibitor experiment is not a caspase-3-specific genetic knockout, but together with the PAINT/conserved caspase context it supports a non-core neuronal differentiation role, not universal dependence of all neurons. The abstract does not specify the neurosphere species, so no direct human or mouse assay is invented.
Supporting Evidence:
PMID:16103108
peptide inhibition of protease activity effectively inhibits the differentiation process in a cultured neurosphere model.
PMID:15248196
Proliferative (Ki67-positive) and differentiated (TUJ1-positive) cells within the EGL exhibited a cytosolic expression of caspase-3
GO:0031264 death-inducing signaling complex
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: The PAINT-supported death-inducing signaling complex association need not imply an initiator-caspase role.
Reason: The PAINT-supported death-inducing signaling complex association need not imply an initiator-caspase role. PMID:17518537 reports a Fas/FADD/caspase-8/c-FLIP/caspase-3 complex in rat spinal injury; retain the conserved contextual association without asserting direct binary death-receptor binding.
Supporting Evidence:
GO:0031647 regulation of protein stability
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Caspase-3 cleavage of GGA3 alters BACE protein stability.
Reason: Regulation of protein stability is a downstream consequence of substrate cleavage; non-core.
Supporting Evidence:
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretase activity.
GO:0032025 response to cobalt ion
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to cobalt ion: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat PC12 donor experiment directly applies CoCl2 and measures apoptotic caspase activities, DNA fragmentation and their attenuation by estradiol. Retain the conserved stress-execution response to cobalt as non-core. The evidence concerns chemically induced hypoxic stress, not a cobalt cofactor requirement, direct metal receptor, or a native human tissue assay.
Supporting Evidence:
PMID:18598848
limited the activities of the caspase cascades, such as caspase-8, -9 and -3.
GO:0032355 response to estradiol
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to estradiol: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The same traced PC12 study tests estradiol pretreatment and measures decreased caspase-cascade activity under cobalt stress. A response term can include reduced activity; it does not imply that estradiol activates CASP3. Retain this conserved, context-dependent modulation as non-core, without assigning estrogen-receptor activity or claiming an unchallenged human neuronal response.
Supporting Evidence:
PMID:18598848
Pre-incubation of estradiol prior to CoCl(2) treatment attenuated CoCl(2)-mediated the reactive oxygen species (ROS) production and limited the activities of the caspase cascades
GO:0032496 response to lipopolysaccharide
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to lipopolysaccharide: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat donor study injects LPS into pregnant animals and measures a time-ordered caspase cascade and cleaved caspase-3 in fetal brain. Retain execution downstream of this inflammatory stimulus as a non-core comparative response. Maternal/fetal injury is not direct LPS recognition by CASP3, and the result must not be generalized to all tissues or treated as an innate immune receptor mechanism. Normal refresh still lacks complete full text; the specific activation time course is explicit in the abstract.
Supporting Evidence:
PMID:18289516
Caspase activity assays demonstrated rapid increases in (i) caspases-9 and -10 within 1 h, (ii) caspase-8 at 2 h and (iii) caspase-3 at 4 h.
GO:0034349 glial cell apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to glial cell apoptotic process.
Reason: Glial cell apoptotic process is a cell-type-specific instance of apoptotic execution; non-core. Independent source audit: Native mouse spinal injury provides glial-apoptosis context; the principal genetic perturbation in this paper is Bax. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:14507967
anti-activated caspase-3 characterized the ongoing oligodendrocyte death
GO:0035094 response to nicotine
IEA
GO_REF:0000107
UNDECIDED
Summary: response to nicotine: the precise claim remains unresolved for a specified source-level reason.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The rat PC12 source tests nicotine during tunicamycin versus thapsigargin ER stress. Its accessible abstract reports GRP78, caspase-12, XBP1 and ATF6 changes, but does not expose a caspase-3-specific result. This is not a wrong-paralog verdict: CASP3 could have been assayed in the full text, which was not available in the inspected cache. The exact CASP3 nicotine-response transfer therefore remains unresolved, with a source and specific missing assay identified.
Supporting Evidence:
PMID:18477628
nicotine reduced the activation of caspase-12 in Tm-treated cells, but not in Tg-treated cells.
GO:0035556 intracellular signal transduction
IEA
GO_REF:0000107
MODIFY
Summary: CASP3 directly participates in proteolytic apoptotic signaling.
Reason: CASP3 directly participates in proteolytic apoptotic signaling. Refine the broad intracellular signaling annotation to the supported apoptotic signaling pathway; being downstream does not mean it performs no signaling step.
Proposed replacements: apoptotic signaling pathway
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
GO:0036269 swimming behavior
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: swimming behavior: the transferred behavioral claim exceeds the donor experiment.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The complete rat source measures Morris-water-maze performance after splenectomy and IGF1 treatment while measuring hippocampal caspase-3 as an expression marker. It does not manipulate CASP3 to establish a locomotor swimming role; moreover, the assay is interpreted as cognitive performance, not a CASP3-dependent swimming motor program. GO:0036269 specifically denotes the locomotory response of swimming. Transferring this assay-associated marker into a human swimming-behavior function overstates the source context. This does not assert that caspase-3 cannot influence neurons, cognition or behavior in other experiments.
Supporting Evidence:
PMID:33574912
The current study assessed the therapeutic effects of insulin-like growth factor-1 (IGF-1) on POCD in aged rats and explored the underlying mechanisms.
GO:0042542 response to hydrogen peroxide
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to hydrogen peroxide: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The donor experiment uses rat H9c2 cardiomyocytes and directly measures peroxide-induced caspase-3 cleavage/activity and protection after short leptin pretreatment. Retain the conserved oxidative-stress execution response as non-core, not peroxide detoxification or sensing. The 1-hour versus 24-hour pretreatment difference is a source-specific limitation, not a universal leptin/CASP3 relationship.
Supporting Evidence:
PMID:18479463
leptin prevented H(2)O(2)-induced increases in caspase-3 cleavage and activity
GO:0043025 neuronal cell body
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: neuronal cell body: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. Unlike the axon-bundling process claim transferred from the same paper, this cellular-component assertion has direct support in the rat source abstract: cleaved caspase-3 is enriched in neuronal cell bodies during prion-peptide injury. Retain the conserved somatic neuronal pool as a non-core localization. The experimental condition does not establish exclusive somatic localization in every neuron or direct localization in the target species.
Supporting Evidence:
PMID:25898930
cleaved caspase-3 is only enriched in cell bodies
GO:0043065 positive regulation of apoptotic process
IEA
GO_REF:0000120
ACCEPT
Summary: CASP3 supplies both apoptotic execution and proteolytic amplification.
Reason: Human CASP3 cleaves downstream substrates and other caspases, supporting a direct positive contribution to apoptosis. Native mouse PMID:16469926 provides comparative feedback evidence for the Casp3/Casp7 axis promoting early cytochrome-c release; it is not presented as a human knockout. Retain the regulatory claim independently of the execution-phase claim: GO:0097194 is not an is_a/part_of descendant of GO:0043065, and broad positive regulation is not peripheral merely because execution is a more specific stage. Full PMID:18723680 independently compares recombinant human and murine enzymes and resolves CASP3-driven propagation of the caspase activation cascade, strengthening the amplification interpretation beyond a family annotation.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Cleaves and activates caspase-6, -7 and -9
PMID:16469926
This suggests a pathway from caspase 9 through caspases 3 and 7 that promotes cytochrome c release at early time points.
PMID:18723680
These data suggest that caspase-3 is a more efficient enzyme than caspase-7 in terms of its ability to propagate the caspase activation cascade.
GO:0043200 response to amino acid
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to amino acid: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The full rat spinal-cord study applies glutamate and measures activated caspase-3 after excitotoxic exposure. Retain the amino-acid-stimulus response in this injury context, not amino-acid biosynthesis or nutrient sensing. The paper explicitly notes persistent staining when little further cell loss occurs, so caspase-3 staining is not equated with inevitable rapid apoptosis or a universal human spinal injury mechanism.
Supporting Evidence:
PMID:18423997
The nuclei of many cells strongly and specifically stained for activated caspase-3, an indicator of apoptosis, in response to exposure to glutamate.
GO:0043523 regulation of neuron apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to regulation of neuron apoptotic process.
Reason: Regulation of neuron apoptotic process is a tissue-specific manifestation of apoptotic execution; non-core. Independent source audit: Native mouse developmental neuronal regulation. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:10618441
it independently regulates apoptosis of neuronal founder cells
GO:0043525 positive regulation of neuron apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to positive regulation of neuron apoptotic process.
Reason: Positive regulation of neuron apoptotic process is a tissue-specific manifestation of apoptotic execution; non-core (duplicate of the IBA row). Independent source audit: Native mouse developmental neuronal apoptosis; necessity varies among neuronal populations. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:10618441
caspase-3 deficiency abrogated the
GO:0044877 protein-containing complex binding
IEA
GO_REF:0000107
UNDECIDED
Summary: The specific protein-containing complex binding interaction is unresolved beyond the rat DISC association.
Reason: Provenance: GO_REF:0000107 from UniProtKB:P55213, traced to PMID:17518537 in adult female Fischer rat spinal cord after injury. The rat donor evidence describes recruitment into a Fas-associated DISC. Its abstract does not resolve whether the measured event establishes binding of caspase-3 to the assembled macromolecular complex, versus membership or co-recruitment inferred from its component associations. Normal force retrieval remains abstract-only. The exact experimental distinction cannot be settled from that abstract, and no binding absence, wrong-protein error, or target-species loss is inferred. The source association is genuine; this uncertainty is about the molecular claim and its transfer, not the general apoptotic role of CASP3.
Propagation Review
Root cause: UNRESOLVED
Sources checked:
UniProtKB:P55213 UNRESOLVED
The rat donor evidence describes recruitment into a Fas-associated DISC. Its abstract does not resolve whether the measured event establishes binding of caspase-3 to the assembled macromolecular complex, versus membership or co-recruitment inferred from its component associations. Full assay details remain inaccessible in the normally fetched source.
Supporting Evidence:
PMID:17518537
SCI resulted in FasL and Fas translocation into membrane raft microdomains where Fas associates with the adaptor proteins Fas-associated death domain (FADD), caspase-8, cellular FLIP long form (cFLIPL ), and caspase-3, forming a death-inducing signaling complex (DISC).
GO:0045471 response to ethanol
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to ethanol: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The full rat hippocampal study detects increased total caspase-3 after repeated ethanol exposure but no detectable cleaved caspase-3. The second donor PMID:30926569 reports ethanol-modulated caspase-3 expression in rat kidney/liver. A response term includes enzyme-production/expression changes, so retain the contextual response without claiming activation in the hippocampal experiment. Do not relabel the first study as evidence that CASP3 executes the observed neurodegeneration; the authors instead discuss nonapoptotic pathways.
Supporting Evidence:
PMID:23102656
caspase-3 levels were 2-fold greater
PMID:23102656
cleaved caspase-3 was undetectable in the HC of either ethanol-intoxicated or control rats.
GO:0051146 striated muscle cell differentiation
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to striated muscle cell differentiation.
Reason: Striated muscle cell differentiation is a non-apoptotic tissue-specific differentiation role; non-core. Independent source audit: Myogenic context supports a differentiated nonapoptotic role; the abstract alone does not establish universality. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:23727203
caspase-3 activity, an important factor for myogenic differentiation, was enhanced by Nek5 cleavage
GO:0051384 response to glucocorticoid
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to glucocorticoid: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The full donor study measures thymic caspase-3 immunostaining and apoptotic index after dexamethasone treatment in rats with severe pancreatitis. Retain this contextual glucocorticoid response as a comparative non-core claim. Its caspase-3 measurement is protein abundance rather than a purified activity or CASP3-specific perturbation assay, and it does not establish direct glucocorticoid-receptor binding or universal steroid responses.
Supporting Evidence:
PMID:18288275
The treated group in Caspase-3 protein expression of thymus significantly exceeded the model group at 12 hours.
GO:0071887 leukocyte apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: leukocyte apoptotic process: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The traced donor study uses the rat LT12 acute myeloid leukemia line and photodynamic therapy, with apoptosis measurements and sequential cleavage of effector caspases/PARP. The activated executioner contributes directly to leukocyte-lineage cell apoptosis; retain that conserved contextual process as non-core. This does not prove the same photosensitizer response in every primary leukocyte or a universal requirement for CASP3 rather than CASP7.
Supporting Evidence:
PMID:26861981
cleaved caspase-3 delayed to 6-12 h
PMID:26861981
rat acute myeloid leukemia cell line LT12
GO:0072347 response to anesthetic
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to anesthetic: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The neonatal-rat source exposes pups to sevoflurane and measures cleaved caspase-3 immunohistochemically alongside neuronal apoptosis, with CAPE as the intervention. Retain the comparative stress-execution response to this anesthetic as non-core. The result is not anesthetic sensing, a claim that all anesthetics are neurotoxic, or direct evidence in human infants.
Supporting Evidence:
PMID:27498600
CAPE significantly reduced sevoflurane‑induced apoptosis, downregulated the expression levels of caspases
GO:0098693 regulation of synaptic vesicle cycle
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: regulation of synaptic vesicle cycle: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P70677|ensembl:ENSMUSP00000147767. This transfer traces to native mouse hippocampal experiments in PMID:33303681. Full text tests caspase inhibition/activation, autophagic flux and activity-induced vesicle-pool depletion/recovery. Retain the conserved nonapoptotic modulation as non-core, without making CASP3 a structural vesicle protein or assuming that every synapse uses this regulatory route. Pharmacological pathway measurements do not establish an exclusive CASP3 substrate mechanism in human terminals.
Supporting Evidence:
PMID:33303681
the BAD-BAX-caspase-3 pathway regulates autophagy, which in turn limits the size of synaptic vesicle pools
GO:0098883 synapse pruning
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Ortholog-transferred (Ensembl Compara, GO_REF:0000107) annotation to synapse pruning.
Reason: Synapse pruning is a non-apoptotic neuronal role (local caspase activity); genuine but downstream/non-core. Independent source audit: Native mouse/neuron data support local nonlethal synaptic remodeling. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:24478350
local elimination of dendritic spines and dendrite retraction occurred
GO:0098978 glutamatergic synapse
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: glutamatergic synapse: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P70677|ensembl:ENSMUSP00000147767. This cellular-component transfer traces to mouse hippocampal spines in PMID:21151119, where local caspase-3 activity, calcineurin and AMPA-receptor changes accompany altered glutamatergic transmission. Retain a comparative non-core synaptic pool, not a claim that all CASP3 resides at glutamatergic synapses or that it is a neurotransmitter receptor. The source is a mouse model, not a direct human localization assay.
Supporting Evidence:
PMID:21151119
removal of the GluR1 subunit of AMPA-type receptor from postsynaptic sites.
GO:1902004 positive regulation of amyloid-beta formation
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Caspase-3-mediated GGA3 cleavage increases BACE/beta-secretase activity, promoting amyloid-beta formation.
Reason: A downstream, disease-context effect of substrate cleavage; genuine but non-core.
Supporting Evidence:
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretase activity.
GO:1990418 response to insulin-like growth factor stimulus
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: response to insulin-like growth factor stimulus: retain with the primary study's context and species limits.
Reason: Provenance trace: GO_REF:0000107 via UniProtKB:P55213|ensembl:ENSRNOP00000014096. The full donor study administers IGF-1 to aged splenectomized rats and detects hippocampal caspase-3 expression changes. Response-to-stimulus terms include changes in enzyme production/gene expression, so retain this contextual expression response as non-core. It does not demonstrate that CASP3 is an IGF receptor, directly transduces IGF1 signaling, or mediates the observed behavioral rescue.
Supporting Evidence:
PMID:33574912
IGF-1 downregulated caspase-3 and Bax, and upregulated Bcl2 following splenectomy
GO:0032880 regulation of protein localization
IMP
PMID:17559062
The most widespread desmosomal cadherin, desmoglein 2, is a ...
KEEP AS NON CORE
Summary: Apoptotic DSG2 cleavage redistributes its cytoplasmic fragment and disrupts junctional association.
Reason: PMID:17559062 explicitly reports DSG2 cleavage, cytosolic appearance of a 70-kDa fragment, loss of cell-surface staining, and plakoglobin cleavage/detachment in staurosporine-treated human HaCaT and HT-29 cells. z-DEVD-fmk preserves the surface labeling. This supports a specific proteolysis-dependent localization outcome, not a general protein-transport activity. The abstract supplies those results; unavailable full methods are not invented.
Supporting Evidence:
PMID:17559062
The proteolytic processing of full-length Dsg2 resulted in the appearance of a 70-kDa fragment which was released into the cytosol.
GO:0098883 synapse pruning
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Caspase-3 contributes to synapse pruning, a non-apoptotic local role inferred by sequence similarity.
Reason: A genuine but downstream/non-core neuronal role; retained as non-core (mirrors the IEA synapse pruning row). Independent source audit: Native mouse/neuron data support local nonlethal synaptic remodeling. When the cited work is in mouse or rat, it supports conserved contextual inference rather than a direct human experiment.
Supporting Evidence:
PMID:24478350
local elimination of dendritic spines and dendrite retraction occurred
GO:0016485 protein processing
ISS
GO_REF:0000024
ACCEPT
Summary: Caspase-3 processes substrate proteins by limited proteolysis (ISS).
Reason: Protein processing is a valid process realization of caspase-3 substrate cleavage; consistent with IDA evidence.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
GO:0016485 protein processing
IDA
PMID:33725486
Caspase cleavage releases a nuclear protein fragment that st...
ACCEPT
Summary: Caspase-3 processes XRCC4, releasing a C-terminal fragment that activates the Xkr4 scramblase.
Reason: Direct evidence of caspase-3 protein processing producing an active fragment; core-adjacent process.
Supporting Evidence:
PMID:33725486
Upon apoptotic stimuli, XRCC4, contained in the DNA repair complex, is cleaved by caspases, and its C-terminal fragment with an intrinsically disordered region is released into the cytoplasm.
GO:0097194 execution phase of apoptosis
IDA
PMID:18723680
Executioner caspase-3 and caspase-7 are functionally distinc...
ACCEPT
Summary: Caspase-3 is the major executioner caspase of the demolition phase of apoptosis.
Reason: Direct, well-supported core process term.
Supporting Evidence:
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0097194 execution phase of apoptosis
IDA
PMID:33725486
Caspase cleavage releases a nuclear protein fragment that st...
ACCEPT
Summary: Caspase-3 executes apoptosis, including cleavage of XRCC4/scramblases driving PtdSer exposure.
Reason: Direct evidence supporting the execution-phase role.
Supporting Evidence:
PMID:33725486
caspase-mediated cleavage releases a nuclear protein fragment for direct regulation of lipid dynamics on the plasma membrane.
GO:0005737 cytoplasm
EXP
PMID:15003516
Caspase 3 activation is controlled by a sequence located in ...
MODIFY
Summary: CASP3 acts in a soluble cytosolic pool during proteolytic signaling.
Reason: CASP3 acts in a soluble cytosolic pool during proteolytic signaling. Refine the broad cytoplasm annotation to the supported cytosol compartment; nuclear or extracellular pools are represented separately.
Proposed replacements: cytosol
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Cytoplasm
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:17823127
Cytosolic accumulation of HSP60 during apoptosis with or wit...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. HSP60 modulates caspase-3 pro/anti-apoptotic activity (cysteine protease assay).
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:17823127
Cytosolic accumulation of HSP60 during apoptosis with or without apparent mitochondrial release: evidence that its pro-apoptotic or pro-survival functions involve differential interactions with caspase-3.
GO:0097194 execution phase of apoptosis
IGI
PMID:12107093
Microinjection of cathepsin d induces caspase-dependent apop...
ACCEPT
Summary: Cathepsin D microinjection induces caspase-dependent apoptosis, with caspase-3 acting in the execution phase (genetic interaction).
Reason: Supports caspase-3's execution-phase role via genetic interaction evidence.
Supporting Evidence:
PMID:12107093
Microinjection of cathepsin d induces caspase-dependent apoptosis in fibroblasts.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:9334240
Involvement of caspase-1 and caspase-3 in the production and...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves pro- and mature IL-18 at Asp71/Asp76 (DEVD-inhibitable activity).
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:9334240
Involvement of caspase-1 and caspase-3 in the production and processing of mature human interleukin 18 in monocytic THP.1 cells.
GO:0016485 protein processing
IDA
PMID:9334240
Involvement of caspase-1 and caspase-3 in the production and...
ACCEPT
Summary: Caspase-3 processes IL-18 (cleaving at Asp71/Asp76).
Reason: Direct evidence of caspase-3 protein processing of a cytokine substrate.
Supporting Evidence:
PMID:9334240
the other is caspase-3, which cleaves both precursor and mature hIL-18 at Asp71-Ser72 and Asp76-Asn77 to generate biologically inactive products.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:37327784
Gasdermin D licenses MHCII induction to maintain food tolera...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 protease activity in gasdermin/IL-18 processing context.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:37327784
Gasdermin D licenses MHCII induction to maintain food tolerance in small intestine.
GO:0001818 negative regulation of cytokine production
IMP
PMID:36002459
Apoptotic caspase inhibits innate immune signaling by cleavi...
ACCEPT
Summary: CASP3 proteolysis directly suppresses NF-kappaB-dependent cytokine production.
Reason: Full PMID:36002459 combines human CASP3 knockdown/knockout, purified human enzyme cleavage of p65/RelA, RelB and c-Rel, and cleavage-resistant substrate mutants that resist cytokine suppression. The native mouse macrophage and knockout-mouse results corroborate the function across species, but the construct assays retain their identity. This is direct proteolytic regulation, not merely fewer living cytokine-producing cells.
Supporting Evidence:
PMID:36002459
These recombinant proteins were then incubated with purified active human recombinant caspase-3.
PMID:36002459
the cytokine production induced by RelBD205A was resistant to caspase-3-mediated repression
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:36002459
Apoptotic caspase inhibits innate immune signaling by cleavi...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves NF-kB subunits p65/RelA, RelB, c-Rel via its protease activity.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:36002459
Apoptotic caspase inhibits innate immune signaling by cleaving NF-ΞΊBs in both Mammals and Flies.
GO:0006915 apoptotic process
IDA
PMID:34480022
Endotoxin stabilizes protein arginine methyltransferase 4 (P...
MODIFY
Summary: CASP3 directly performs proteolytic steps of apoptotic execution.
Reason: The target effector protease directly performs the controlled substrate breakdown of apoptotic execution. Refine apoptotic process to the already represented GO:0097194 execution phase, supported by target-specific substrate/nuclear-change evidence rather than C14A membership, which also includes initiator and inflammatory caspases. Human-enzyme PMID:18723680 directly compares substrate cleavage by executioner caspases. The original full source measures activated CASP3 after PRMT4/LPS manipulation in human and mouse epithelia; independent execution biochemistry supports the refinement beyond the activation marker.
Proposed replacements: execution phase of apoptosis
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0070269 pyroptotic inflammatory response
IDA
PMID:36426955
TRIM21 Regulates Virus-Induced Cell Pyroptosis through Polyu...
KEEP AS NON CORE
Summary: Virus-triggered CASP3/GSDME activity can produce a pyroptotic inflammatory response.
Reason: The original PMID:36426955 abstract explicitly connects TRIM21/ISG12a-driven caspase-3 activation to GSDME cleavage and membrane perforation during viral infection. Independent full 33852854 demonstrates that GSDME can permit IL-1beta release in sublytic as well as overtly lytic phases. Retain the broader inflammatory-response outcome as conditional non-core context, while the direct GSDME-activating proteolysis is separately a supported core activity. Neither cell lysis alone nor every apoptotic CASP3 activation implies an identical cytokine response.
Supporting Evidence:
PMID:36426955
Gasdermin E (GSDME) is specifically cleaved by caspase 3 upon viral infection
PMID:33852854
Endogenous GSDME activation permitted sublytic, continuous interleukin-1Ξ² (IL-1Ξ²) release and membrane leakage
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:33852854
Gasdermin E permits interleukin-1 beta release in distinct s...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves and activates gasdermin-E (GSDME) at its linker.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:33852854
Gasdermin E permits interleukin-1 beta release in distinct sublytic and pyroptotic phases.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:35594856
Human NLRP1 is a sensor of pathogenic coronavirus 3CL protea...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 protease activity in NLRP1/gasdermin processing context.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:35594856
Human NLRP1 is a sensor of pathogenic coronavirus 3CL proteases in lung epithelial cells.
GO:0051604 protein maturation
IDA
PMID:33852854
Gasdermin E permits interleukin-1 beta release in distinct s...
ACCEPT
Summary: Caspase-3 matures gasdermin-E (GSDME) by cleavage at its activation site.
Reason: Direct evidence of caspase-3 protein maturation of a substrate.
Supporting Evidence:
PMID:33852854
non-cleavable GSDMED270A variant (altered at the CASP3 cleavage and activation site)
GO:0051604 protein maturation
IDA
PMID:35594856
Human NLRP1 is a sensor of pathogenic coronavirus 3CL protea...
ACCEPT
Summary: Caspase-3 matures gasdermin substrates in the NLRP1/coronavirus protease context.
Reason: Direct evidence of caspase-3 protein maturation activity.
Supporting Evidence:
PMID:35594856
Human NLRP1 is a sensor of pathogenic coronavirus 3CL proteases in lung epithelial cells.
GO:0140639 positive regulation of pyroptotic inflammatory response
IDA
PMID:33852854
Gasdermin E permits interleukin-1 beta release in distinct s...
ACCEPT
Summary: CASP3-mediated GSDME cleavage can promote IL-1beta release before or during lysis.
Reason: Full PMID:33852854 distinguishes endogenous GSDME-dependent sublytic IL-1beta release from overt pyroptosis at higher GSDME abundance. Human THP-1 knockout/rescue and cleavage-resistant GSDME establish the route; the cross-species iBMM rescue uses human GSDME, not native mouse GSDME. Accept the positive-regulatory mechanism with those expression and assay boundaries rather than equating all inflammatory secretion with cell lysis.
Supporting Evidence:
PMID:33852854
Endogenous GSDME activation permitted sublytic, continuous interleukin-1Ξ² (IL-1Ξ²) release and membrane leakage
GO:0140639 positive regulation of pyroptotic inflammatory response
IDA
PMID:35594856
Human NLRP1 is a sensor of pathogenic coronavirus 3CL protea...
ACCEPT
Summary: CASP3/GSDME supplies an alternative inflammatory-death route in infected human epithelia.
Reason: Full PMID:35594856 detects caspase activation and GSDME processing in SARS-CoV-2-infected human epithelial models and shows reduced LDH release after CASP3 or GSDME genetic removal in engineered A549 cells. The route compensates for inefficient GSDMD activation and depends on epithelial context; it does not make CASP3 the universal NLRP1 sensor or every inflammasome executor.
Supporting Evidence:
PMID:35594856
both genetic removal caspase-3 and GSDME improved cell survival upon SARS-CoV-2 infection
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:28459430
Chemotherapy drugs induce pyroptosis through caspase-3 cleav...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 specifically cleaves GSDME in its linker to generate the pore-forming N fragment.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:28459430
Chemotherapy drugs induce pyroptosis through caspase-3 cleavage of a gasdermin.
GO:0051604 protein maturation
IDA
PMID:28459430
Chemotherapy drugs induce pyroptosis through caspase-3 cleav...
ACCEPT
Summary: Caspase-3 matures gasdermin-E by cleavage in its linker to generate the pore-forming fragment.
Reason: Direct evidence of caspase-3 protein maturation of GSDME.
Supporting Evidence:
PMID:28459430
GSDME was specifically cleaved by caspase-3 in its linker, generating a GSDME-N fragment that perforates membranes and thereby induces pyroptosis.
GO:0097194 execution phase of apoptosis
IDA
PMID:16374543
Nuclear caspase-3 and caspase-7 activation, and poly(ADP-rib...
ACCEPT
Summary: Active nuclear caspase-3 executes apoptosis (PARP cleavage) early in camptothecin-induced death.
Reason: Direct evidence of caspase-3 execution-phase activity.
Supporting Evidence:
PMID:16374543
the activation of nuclear caspases-7 and -3, and poly(ADP-ribose) polymerase (PARP) cleavage, are early events in camptothecin-induced apoptosis
GO:0140639 positive regulation of pyroptotic inflammatory response
IDA
PMID:28459430
Chemotherapy drugs induce pyroptosis through caspase-3 cleav...
ACCEPT
Summary: Caspase-3 cleavage of GSDME positively regulates pyroptosis after chemotherapy.
Reason: Direct evidence that caspase-3 promotes the pyroptotic inflammatory response.
Supporting Evidence:
PMID:28459430
caspase-3 activation can trigger necrosis by cleaving GSDME
GO:0005737 cytoplasm
IDA
PMID:17167422
Hsp70 regulates erythropoiesis by preventing caspase-3-media...
MODIFY
Summary: CASP3 acts in a soluble cytosolic pool during proteolytic signaling.
Reason: CASP3 acts in a soluble cytosolic pool during proteolytic signaling. Refine the broad cytoplasm annotation to the supported cytosol compartment; nuclear or extracellular pools are represented separately.
Proposed replacements: cytosol
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Cytoplasm
GO:0097193 intrinsic apoptotic signaling pathway
IMP
PMID:15565177
A novel mitochondrial protein DIP mediates E2F1-induced apop...
ACCEPT
Summary: CASP3 participates in intrinsic-apoptosis signaling and its amplification.
Reason: PMID:15565177 reports mitochondrial DIP/E2F1-induced apoptosis with caspase-3 activation and PARP cleavage; its accessible abstract primarily perturbs DIP rather than CASP3. The conserved feedback contribution is independently supported by native mouse Casp3/Casp7 experiments in full 16469926, which delay early mitochondrial events when both effectors are absent. This supports the existing signaling claim with an explicit comparative boundary; it is not justified simply by equating downstream execution with the GO pathway that ends at execution onset.
Supporting Evidence:
PMID:15565177
typical apoptotic features such as caspase-3 activation and cleavage of poly(ADP-ribose)-polymerase
PMID:16469926
This suggests a pathway from caspase 9 through caspases 3 and 7 that promotes cytochrome c release at early time points.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:16374543
Nuclear caspase-3 and caspase-7 activation, and poly(ADP-rib...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Active nuclear caspase-3 cleaves PARP early in camptothecin-induced apoptosis.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:16374543
Nuclear caspase-3 and caspase-7 activation, and poly(ADP-ribose) polymerase cleavage are early events in camptothecin-induced apoptosis.
GO:0005634 nucleus
IDA
PMID:16374543
Nuclear caspase-3 and caspase-7 activation, and poly(ADP-rib...
ACCEPT
Summary: CASP3 has a supported nuclear pool and cleaves nuclear substrates.
Reason: CASP3 has a supported nuclear pool and cleaves nuclear substrates. Retain nucleus because the available localization evidence is not uniformly resolved to a single nuclear subcompartment.
Supporting Evidence:
PMID:22253444
caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0030163 protein catabolic process
IDA
PMID:16374543
Nuclear caspase-3 and caspase-7 activation, and poly(ADP-rib...
ACCEPT
Summary: CASP3 directly cleaves and dismantles many protein substrates during apoptotic execution.
Reason: CASP3 directly cleaves and dismantles many protein substrates during apoptotic execution. This supports protein catabolic participation, while regulatory cleavage of individual substrates need not imply their complete degradation.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:20566630
Identification of functional regions defining different acti...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Functional regions defining caspase-3 vs caspase-7 cellular protease activity.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:20566630
Identification of functional regions defining different activity in caspase-3 and caspase-7 within cells.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:23650375
Structural snapshots reveal distinct mechanisms of procaspas...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Structural snapshots of procaspase-3 activation (catalytic mechanism).
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:23650375
Structural snapshots reveal distinct mechanisms of procaspase-3 and -7 activation.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:18723680
Executioner caspase-3 and caspase-7 are functionally distinc...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves multiple natural substrates (Bid, XIAP, gelsolin, caspase-6, p23).
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:18723680
Executioner caspase-3 and caspase-7 are functionally distinct proteases.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:30878284
Apoptotic Caspases Suppress Type I Interferon Production via...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves cGAS, MAVS and IRF3 via its protease activity.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:30878284
Apoptotic Caspases Suppress Type I Interferon Production via the Cleavage of cGAS, MAVS, and IRF3.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:33725486
Caspase cleavage releases a nuclear protein fragment that st...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves XRCC4 and XKR scramblases (apoptotic PtdSer exposure).
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:33725486
Caspase cleavage releases a nuclear protein fragment that stimulates phospholipid scrambling at the plasma membrane.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:24904167
Caspase-mediated cleavage of phospholipid flippase for apopt...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves the ATP11C phospholipid flippase for apoptotic PtdSer exposure.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:24904167
Caspase-mediated cleavage of phospholipid flippase for apoptotic phosphatidylserine exposure.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:19240112
Huntingtin promotes cell survival by preventing Pak2 cleavag...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves PAK2 (huntingtin modulates this).
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:19240112
Huntingtin promotes cell survival by preventing Pak2 cleavage.
GO:0008233 peptidase activity
IDA
PMID:17167422
Hsp70 regulates erythropoiesis by preventing caspase-3-media...
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0005515 protein binding
IPI
PMID:15246877
S-nitrosation of thioredoxin in the nitrogen monoxide/supero...
UNDECIDED
Summary: The original CASP3-thioredoxin interaction assay remains inaccessible.
Reason: Normal force retrieval of PMID:15246877 remains abstract-only. It describes S-nitrosation of thioredoxin and dissociation/activation of ASK1 in the NO/superoxide system, but does not expose the CASP3 interaction experiment underlying this IPI row. The original full text may contain that experiment; its absence from the abstract is not evidence of wrong-gene attribution. Preserve uncertainty rather than remove a binding assertion whose precise evidence cannot be adjudicated.
Supporting Evidence:
PMID:15246877
N2O3-dependent S-nitrosation of Trx at approximately 2-fold of NO excess compared to the superoxide amount resulted in dissociation and activation of apoptosis signal regulating kinase 1 (ASK1).
GO:0006508 proteolysis
IDA
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretas...
ACCEPT
Summary: CASP3 directly catalyzes proteolysis of diverse substrates.
Reason: CASP3 directly catalyzes proteolysis of diverse substrates. This process is core and spans destructive and regulatory cleavage, so no single narrower protein-processing process replaces its full scope.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0031647 regulation of protein stability
IDA
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretas...
KEEP AS NON CORE
Summary: Caspase-3 cleavage of GGA3 alters BACE protein stability.
Reason: Regulation of protein stability is a downstream consequence of substrate cleavage; non-core.
Supporting Evidence:
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretase activity.
GO:1902004 positive regulation of amyloid-beta formation
IDA
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretas...
KEEP AS NON CORE
Summary: Caspase-3-mediated GGA3 cleavage increases BACE/beta-secretase activity, promoting amyloid-beta formation.
Reason: A downstream, disease-context effect of substrate cleavage; genuine but non-core.
Supporting Evidence:
PMID:17553422
Depletion of GGA3 stabilizes BACE and enhances beta-secretase activity.
GO:0004197 cysteine-type endopeptidase activity
IMP
PMID:21980415
Identification of a conserved anti-apoptotic protein that mo...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Anti-apoptotic protein modulates mitochondrial caspase-3 activation.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:21980415
Identification of a conserved anti-apoptotic protein that modulates the mitochondrial apoptosis pathway.
GO:0006915 apoptotic process
IMP
PMID:15565177
A novel mitochondrial protein DIP mediates E2F1-induced apop...
MODIFY
Summary: CASP3 directly performs proteolytic steps of apoptotic execution.
Reason: The target effector protease directly performs the controlled substrate breakdown of apoptotic execution. Refine apoptotic process to the already represented GO:0097194 execution phase, supported by target-specific substrate/nuclear-change evidence rather than C14A membership, which also includes initiator and inflammatory caspases. Human-enzyme PMID:18723680 directly compares substrate cleavage by executioner caspases. The original DIP/E2F1 source reports CASP3 activation and PARP cleavage; DIP is the directly perturbed factor in the accessible abstract.
Proposed replacements: execution phase of apoptosis
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:16920334
Protective role of Cop in Rip2/caspase-1/caspase-4-mediated ...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 activity in Rip2/caspase-1/-4-mediated cell death.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:16920334
Protective role of Cop in Rip2/caspase-1/caspase-4-mediated HeLa cell death.
GO:0008233 peptidase activity
IDA
PMID:19740745
A truncated form of p23 down-regulates telomerase activity v...
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0004197 cysteine-type endopeptidase activity
IMP
PMID:22253444
Apoptotic DNA degradation into oligonucleosomal fragments, b...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves ICAD/CAD to enable apoptotic DNA fragmentation.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:22253444
Apoptotic DNA degradation into oligonucleosomal fragments, but not apoptotic nuclear morphology, relies on a cytosolic pool of DFF40/CAD endonuclease.
GO:0005829 cytosol
IDA
PMID:22253444
Apoptotic DNA degradation into oligonucleosomal fragments, b...
ACCEPT
Summary: Caspase-3 is processed and active in the cytosol (where it cleaves ICAD/CAD).
Reason: Cytosol is the core location of caspase-3 activity; directly supported.
Supporting Evidence:
PMID:22253444
the main processing of pro-caspase-3 takes place in the cytosol of both cells lines analyzed
GO:0072734 cellular response to staurosporine
IMP
PMID:22253444
Apoptotic DNA degradation into oligonucleosomal fragments, b...
KEEP AS NON CORE
Summary: Caspase-3 is activated in response to staurosporine, cleaving ICAD to enable DNA fragmentation.
Reason: A stimulus/response context (intrinsic apoptosis trigger); caspase-3 acts as executioner. Non-core.
Supporting Evidence:
PMID:22253444
the activation of, at least, caspase-3 is necessary for the proper cleavage of ICAD L/S
GO:0016241 regulation of macroautophagy
TAS
PMID:19549685
Caspase cleavage of Atg4D stimulates GABARAP-L1 processing a...
KEEP AS NON CORE
Summary: Caspase cleavage of Atg4D stimulates GABARAP-L1 processing, linking caspase-3 to autophagy regulation.
Reason: Regulation of macroautophagy is a downstream cross-talk role (TAS) via substrate cleavage; non-core.
Supporting Evidence:
PMID:19549685
Caspase cleavage of Atg4D stimulates GABARAP-L1 processing and triggers mitochondrial targeting and apoptosis.
GO:0048011 neurotrophin TRK receptor signaling pathway
IDA
PMID:23954828
Dok5 is involved in the signaling pathway of neurotrophin-3 ...
UNDECIDED
Summary: The CASP3 step within NT-3/TrkC receptor signaling remains unresolved.
Reason: PMID:23954828 separates mouse DRG expression/colocalization from HEK293T experiments in which TrkC induces apoptosis, NT-3 protects, and Dok5 knockdown changes caspase-3 activity. The normal force retrieval remains abstract-only. Those results establish a caspase readout downstream of the survival/death manipulation, but do not expose the experiment distinguishing a CASP3-performed receptor-signaling step from downstream apoptotic execution. No absence of CASP3 function or false curator assignment is inferred; the precise pathway participation and target-species transfer remain unresolved.
Supporting Evidence:
PMID:23954828
siRNA knockdown of Dok5 expression partially prevented the protection of NT-3 against TrkC-induced apoptosis by regulating the activity of caspase-3.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:23729654
The human papillomavirus-16 E7 oncoprotein exerts antiapopto...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. HPV-16 E7/gelsolin context modulating caspase-3 activity.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:23729654
The human papillomavirus-16 E7 oncoprotein exerts antiapoptotic effects via its physical interaction with the actin-binding protein gelsolin.
GO:0004197 cysteine-type endopeptidase activity
IMP
PMID:10921886
The RET proto-oncogene induces apoptosis: a novel mechanism ...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. RET proto-oncogene-induced apoptosis is caspase-3-dependent.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:10921886
The RET proto-oncogene induces apoptosis: a novel mechanism for Hirschsprung disease.
GO:0030218 erythrocyte differentiation
IDA
PMID:17167422
Hsp70 regulates erythropoiesis by preventing caspase-3-media...
KEEP AS NON CORE
Summary: Caspase-3 is activated during terminal erythroid differentiation; GATA-1 is protected from cleavage by Hsp70.
Reason: A genuine non-apoptotic role in erythropoiesis, but downstream of the core protease function. Non-core.
Supporting Evidence:
PMID:17167422
Caspase-3 is activated during both terminal differentiation and erythropoietin-starvation-induced apoptosis of human erythroid precursors.
GO:0030218 erythrocyte differentiation
TAS
PMID:18309324
No death without life: vital functions of apoptotic effector...
KEEP AS NON CORE
Summary: Effector caspases including caspase-3 have vital (non-death) functions in erythroid differentiation.
Reason: Non-apoptotic differentiation role (TAS review); genuine but non-core.
Supporting Evidence:
PMID:18309324
No death without life: vital functions of apoptotic effectors.
GO:0030220 platelet formation
TAS
PMID:18309324
No death without life: vital functions of apoptotic effector...
KEEP AS NON CORE
Summary: Caspase-3 contributes to platelet formation (a non-apoptotic effector-caspase function).
Reason: A genuine non-apoptotic tissue role (TAS review); non-core.
Supporting Evidence:
PMID:18309324
No death without life: vital functions of apoptotic effectors.
GO:0097194 execution phase of apoptosis
IMP
PMID:11350920
Deficiency of caspase-3 in MCF7 cells blocks Bax-mediated nu...
ACCEPT
Summary: Caspase-3 is required for Bax-mediated nuclear fragmentation in the execution phase (MCF7 deficiency).
Reason: Direct functional (IMP) evidence for caspase-3's execution-phase role in nuclear demolition.
Supporting Evidence:
PMID:11350920
Deficiency of caspase-3 in MCF7 cells blocks Bax-mediated nuclear fragmentation but not cell death.
GO:0004197 cysteine-type endopeptidase activity
IMP
PMID:17559062
The most widespread desmosomal cadherin, desmoglein 2, is a ...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleaves desmoglein-2 (DSG2) and JUP at desmosomes.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:17559062
The most widespread desmosomal cadherin, desmoglein 2, is a novel target of caspase 3-mediated apoptotic machinery.
GO:0097194 execution phase of apoptosis
IDA
PMID:8689682
Induction of apoptotic program in cell-free extracts: requir...
ACCEPT
Summary: In cell-free extracts, cytochrome c/dATP triggers the apoptotic program that activates executioner caspase-3.
Reason: Classic evidence placing caspase-3 in the execution phase downstream of cytochrome c/apoptosome.
Supporting Evidence:
PMID:8689682
Cells undergoing apoptosis in vivo showed increased release of cytochrome c to their cytosol, suggesting that mitochondria may function in apoptosis by releasing cytochrome c.
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-211186
ACCEPT
Summary: CASP3 acts on nuclear substrates in the nucleoplasm during apoptosis.
Reason: CASP3 acts on nuclear substrates in the nucleoplasm during apoptosis. This is a site of its core proteolytic function, not merely an incidental location.
Supporting Evidence:
PMID:22253444
caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-211190
ACCEPT
Summary: CASP3 acts on nuclear substrates in the nucleoplasm during apoptosis.
Reason: CASP3 acts on nuclear substrates in the nucleoplasm during apoptosis. This is a site of its core proteolytic function, not merely an incidental location.
Supporting Evidence:
PMID:22253444
caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-211219
ACCEPT
Summary: CASP3 acts on nuclear substrates in the nucleoplasm during apoptosis.
Reason: CASP3 acts on nuclear substrates in the nucleoplasm during apoptosis. This is a site of its core proteolytic function, not merely an incidental location.
Supporting Evidence:
PMID:22253444
caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0005829 cytosol
TAS
Reactome:R-HSA-114252
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201595
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201603
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201608
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201611
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201622
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201628
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201629
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201630
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201631
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201636
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201639
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-201640
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-2028692
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-2028697
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202917
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202939
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202947
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202960
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202966
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202967
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-202969
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-205117
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-211219
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-212552
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-350651
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-351849
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-351871
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-351876
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-351877
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-351901
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-351913
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-373705
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-418845
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-449073
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-9627104
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-9647632
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-HSA-9686088
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005829 cytosol
TAS
Reactome:R-NUL-211643
ACCEPT
Summary: Reactome places caspase-3 (and its substrate-cleavage reactions) in the cytosol, the principal compartment of caspase-3 activity.
Reason: Cytosol is the core, well-supported location of caspase-3. These Reactome rows are substrate-cleavage reaction contexts; the cytosolic cellular component is correct.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
SUBCELLULAR LOCATION; Cytoplasm
GO:0005515 protein binding
IPI
PMID:9208847
Casper is a FADD- and caspase-related inducer of apoptosis.
REMOVE
Summary: Casper is reported to interact with caspase-3 along with several FADD/death-effector-pathway proteins.
Reason: The cached abstract supports only a Casper-CASP3 physical interaction and Casper's apoptotic effect when overexpressed. It does not define a more informative CASP3 molecular function, so the unqualified protein binding row should be removed.
Supporting Evidence:
PMID:9208847
Casper interacts with FADD, caspase-8, caspase-3, TRAF1, and TRAF2 through distinct domains.
GO:0005634 nucleus
IDA
PMID:17167422
Hsp70 regulates erythropoiesis by preventing caspase-3-media...
ACCEPT
Summary: CASP3 has a supported nuclear pool and cleaves nuclear substrates.
Reason: CASP3 has a supported nuclear pool and cleaves nuclear substrates. Retain nucleus because the available localization evidence is not uniformly resolved to a single nuclear subcompartment.
Supporting Evidence:
PMID:22253444
caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment
GO:0005829 cytosol
IDA
PMID:17167422
Hsp70 regulates erythropoiesis by preventing caspase-3-media...
ACCEPT
Summary: Caspase-3 acts in the cytosol of erythroid precursors.
Reason: Cytosol is the core site of caspase-3 activity; supported.
Supporting Evidence:
PMID:17167422
Caspase-3 is activated during both terminal differentiation and erythropoietin-starvation-induced apoptosis of human erythroid precursors.
GO:0004197 cysteine-type endopeptidase activity
IDA
PMID:21726810
Caspase-2-mediated cleavage of Mdm2 creates a p53-induced po...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. Caspase-3 cleavage activity in the MDM2/p53 feedback context.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:21726810
Caspase-2-mediated cleavage of Mdm2 creates a p53-induced positive feedback loop.
GO:0034612 response to tumor necrosis factor
TAS
PMID:10521396
Cleavage of the death domain kinase RIP by caspase-8 prompts...
KEEP AS NON CORE
Summary: Caspase-3 acts downstream of TNF-induced apoptosis (RIP cleavage by caspase-8).
Reason: Response to TNF is a stimulus/response signaling context; caspase-3 is the executioner downstream. Non-core.
Supporting Evidence:
PMID:10521396
Cleavage of the death domain kinase RIP by caspase-8 prompts TNF-induced apoptosis.
GO:0097190 apoptotic signaling pathway
TAS
PMID:10521396
Cleavage of the death domain kinase RIP by caspase-8 prompts...
ACCEPT
Summary: Caspase-3 acts within the apoptotic signaling pathway (TNF/death-receptor-induced apoptosis).
Reason: Apoptotic signaling pathway is a valid process for caspase-3 as the executioner; supported.
Supporting Evidence:
PMID:10521396
Cleavage of the death domain kinase RIP by caspase-8 prompts TNF-induced apoptosis.
GO:0008233 peptidase activity
IDA
PMID:9353287
Generation of anti-apoptotic presenilin-2 polypeptides by al...
MODIFY
Summary: CASP3 cleaves internal peptide bonds using a catalytic cysteine.
Reason: CASP3 cleaves internal peptide bonds using a catalytic cysteine. Asp at the substrate cleavage site specifies recognition, not an aspartic catalytic mechanism. The supported specific activity is cysteine-type endopeptidase activity.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0005515 protein binding
IPI
PMID:17823127
Cytosolic accumulation of HSP60 during apoptosis with or wit...
REMOVE
Summary: Cytosolic HSP60 differentially associates with active caspase-3 in apoptotic systems and modulates caspase-3 activation.
Reason: The HSP60 row captures regulation of caspase-3 by a chaperonin and not an additional CASP3 molecular activity. The same paper's direct protease evidence is already captured by a separate cysteine-type endopeptidase activity row.
Supporting Evidence:
PMID:17823127
Cytosolic accumulation of HSP60 during apoptosis with or without apparent mitochondrial release: evidence that its pro-apoptotic or pro-survival functions involve differential interactions with caspase-3.
GO:0005829 cytosol
IDA
PMID:17823127
Cytosolic accumulation of HSP60 during apoptosis with or wit...
ACCEPT
Summary: Caspase-3 is present in the cytosol, where cytosolic HSP60 modulates its activity during apoptosis.
Reason: Cytosol is the core location of caspase-3; directly supported.
Supporting Evidence:
PMID:17823127
Cytosolic accumulation of HSP60 during apoptosis with or without apparent mitochondrial release
GO:0006508 proteolysis
IDA
PMID:12888622
Caspase cleavage of tau: linking amyloid and neurofibrillary...
ACCEPT
Summary: CASP3 directly catalyzes proteolysis of diverse substrates.
Reason: CASP3 directly catalyzes proteolysis of diverse substrates. This process is core and spans destructive and regulatory cleavage, so no single narrower protein-processing process replaces its full scope.
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
Belongs to the peptidase C14A family.
file:human/CASP3/CASP3-uniprot.txt
Strict requirement for an Asp residue at positions P1 and P4.
GO:0005515 protein binding
IPI
PMID:9736630
Tau cleavage and dephosphorylation in cerebellar granule neu...
MODIFY
Summary: Recombinant human caspase-3 cleaves tau in vitro, supporting tau as a CASP3 substrate.
Reason: The CASP3-tau interaction is a substrate-cleavage context and is more informatively represented by cysteine-type endopeptidase activity than by a bare protein binding row.
Supporting Evidence:
PMID:9736630
The treatment of in vitro translated tau by caspase-3 (Fig. 9 C ) clearly reveals that tau can act as an in vitro substrate for this protease
GO:0004197 cysteine-type endopeptidase activity
TAS
PMID:10942389
HIV-1 gp120- and gp160-induced apoptosis in cultured endothe...
ACCEPT
Summary: Direct evidence of caspase-3 cysteine-type endopeptidase activity. HIV-1 gp120/gp160-induced endothelial apoptosis mediated by caspases including caspase-3.
Reason: This is the core molecular function of caspase-3, repeatedly demonstrated experimentally on diverse substrates. Retained as a core function.
Supporting Evidence:
PMID:10942389
HIV-1 gp120- and gp160-induced apoptosis in cultured endothelial cells is mediated by caspases.
GO:0006915 apoptotic process
TAS
PMID:7983002
CPP32, a novel human apoptotic protein with homology to Caen...
MODIFY
Summary: CASP3 directly performs proteolytic steps of apoptotic execution.
Reason: The target effector protease directly performs the controlled substrate breakdown of apoptotic execution. Refine apoptotic process to the already represented GO:0097194 execution phase, supported by target-specific substrate/nuclear-change evidence rather than C14A membership, which also includes initiator and inflammatory caspases. Human-enzyme PMID:18723680 directly compares substrate cleavage by executioner caspases. The original human CPP32 study uses expression in Sf9 insect cells, including coexpressed processed chains; the heterologous host is not a native human-cell experiment.
Proposed replacements: execution phase of apoptosis
Supporting Evidence:
file:human/CASP3/CASP3-uniprot.txt
mediates execution of apoptosis by catalyzing cleavage of many proteins
PMID:18723680
Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.

Core Functions

CASP3 is an Asp-directed cysteine endopeptidase with preference for DEVD-like substrates. It is produced as a zymogen and activated by processing into catalytic large and small chains; native protein recognition extends beyond a short peptide motif.

Directly Involved In:
Cellular Locations:
Supporting Evidence:
  • file:human/CASP3/CASP3-uniprot.txt
    Strict requirement for an Asp residue at positions P1 and P4. It has a preferred cleavage sequence of Asp-Xaa-Xaa-Asp-|-
  • PMID:7596430
    This enzyme, named apopain, is composed of two subunits of relative molecular mass (M(r)) 17K and 12K that are derived from a common proenzyme identified as CPP32.

As the principal executioner caspase, caspase-3 carries out the demolition phase of apoptosis by cleaving many cellular substrates (e.g., PARP1; ICAD/DFF45 to release the CAD/DFF40 DNA-fragmentation nuclease; cytoskeletal, junctional and signaling proteins) and by driving phosphatidylserine exposure through cleavage of XKR scramblases and the ATP11C flippase.

Directly Involved In:
Cellular Locations:
Supporting Evidence:
  • PMID:18723680
    Caspase-3 was found to be generally more promiscuous than caspase-7 and appears to be the major executioner caspase during the demolition phase of apoptosis.
  • PMID:22253444
    the main processing of pro-caspase-3 takes place in the cytosol of both cells lines analyzed even if caspase-3 active fragments can also be evidenced in the nuclear fractions after STP treatment

CASP3 can cleave GSDME to generate a pore-forming fragment, converting apoptosis into lytic inflammatory death in cells expressing sufficient functional GSDME. This outcome is conditional rather than an obligatory consequence of CASP3 activation.

Supporting Evidence:
  • PMID:28459430
    GSDME was specifically cleaved by caspase-3 in its linker, generating a GSDME-N fragment that perforates membranes and thereby induces pyroptosis.
  • PMID:33852854

CASP3 restrains innate immune and cytokine signaling through proteolytic inactivation of antiviral signaling proteins and NF-kappaB subunits. Purified human CASP3, human-cell knockdown/knockout and resistant-substrate experiments support this activity; native mouse studies corroborate it while showing additional Casp7 participation in cGAS inactivation. The outcome depends on stimulus and substrate rather than implying a universally anti-inflammatory effect of caspase activation.

Supporting Evidence:
  • PMID:36002459
    These recombinant proteins were then incubated with purified active human recombinant caspase-3.
  • PMID:30878284
    activated caspase-3 cleaved cGAS, MAVS, and IRF3 to prevent cytokine overproduction.

References

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Suggested Questions for Experts

Q: To what extent are caspase-3 non-apoptotic roles (erythroid/keratinocyte differentiation, synapse pruning, platelet formation) driven by spatially or temporally restricted sublethal caspase-3 activity, and can substrate repertoires be defined that distinguish lethal from non-lethal activation?

Suggested experts: Salvesen GS, Martin SJ

Q: Which GO_REF:0000107 ortholog-transferred stimulus/response and tissue terms on CASP3 represent genuine direct roles versus over-propagation across the caspase family, and should questionable molecular-function transfers (aspartic-type endopeptidase, CDK inhibitor, phospholipase A2 activator) be removed upstream?

Suggested experts: Thornberry NA

Suggested Experiments

Experiment: Perform N-terminomics (e.g., TAILS/subtiligase) on cells undergoing caspase-3-dependent differentiation versus apoptosis, with caspase-3 knockout and caspase-resistant substrate mutants as controls, to map the differentiation-specific cleavage repertoire.

Hypothesis: Caspase-3 substrate cleavage during sublethal/non-apoptotic activation produces a distinct proteome from that during full apoptosis, explaining its differentiation roles.

Type: degradomics / N-terminomics

Experiment: Titrate GSDME expression and caspase-3 activation kinetics in isogenic cell lines (including non-cleavable GSDME D270A) and quantify apoptosis versus pyroptosis outcomes and IL-1 beta release.

Hypothesis: The balance between caspase-3-driven apoptosis and GSDME-driven pyroptosis is set by GSDME abundance and caspase-3 activity kinetics.

Type: cell death pathway dissection

Deep Research

Falcon

(CASP3-deep-research-falcon.md)

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πŸ“š Additional Documentation

Notes

(CASP3-notes.md)

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