Stat1

UniProt ID: P42225
Organism: Mus musculus
Review Status: COMPLETE
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Gene Description

STAT1 is a cytokine-activated signal transducer and RNA polymerase II transcription factor that mediates type I and type II interferon responses. After JAK-dependent phosphorylation it dimerizes, enters the nucleus, binds GAS or ISRE-associated regulatory DNA, and activates interferon-stimulated gene expression.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005737 cytoplasm
IBA
GO_REF:0000033
ACCEPT
Summary: cytoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0006952 defense response
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: defense response pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0042127 regulation of cell population proliferation
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: regulation of cell population proliferation pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0005634 nucleus
IBA
GO_REF:0000033
ACCEPT
Summary: nucleus localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0000978 RNA polymerase II cis-regulatory region sequence-specific DNA binding
IBA
GO_REF:0000033
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0006357 regulation of transcription by RNA polymerase II
IBA
GO_REF:0000033
ACCEPT
Summary: Direct STAT1 transcriptional regulation
Reason: This term directly reflects STAT1-mediated regulation of target-gene transcription after cytokine-induced activation.
GO:0007259 cell surface receptor signaling pathway via JAK-STAT
IBA
GO_REF:0000033
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0000981 DNA-binding transcription factor activity, RNA polymerase II-specific
IBA
GO_REF:0000033
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
Supporting Evidence:
file:mouse/Stat1/Stat1-notes.md
STAT1 is a cytokine-activated DNA-binding transcription factor, especially in type I and type II interferon signaling.
file:mouse/Stat1/Stat1-deep-research-falcon.md
Falcon synthesis supports STAT1 as an interferon-activated STAT-family transcription factor that binds regulatory DNA after JAK-dependent phosphorylation.
GO:0070721 ISGF3 complex
IBA
GO_REF:0000033
ACCEPT
Summary: ISGF3 complex interaction or complex context
Reason: STAT1 is a core subunit of the STAT1/STAT2/IRF9 ISGF3 transcription factor complex during type I interferon signaling, so this complex-membership annotation is accurate even though the core molecular activity remains DNA-binding transcription factor activity.
GO:0043434 response to peptide hormone
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: response to peptide hormone pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0060337 type I interferon-mediated signaling pathway
IBA
GO_REF:0000033
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0000981 DNA-binding transcription factor activity, RNA polymerase II-specific
IEA
GO_REF:0000117
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
Supporting Evidence:
file:mouse/Stat1/Stat1-notes.md
STAT1 is a cytokine-activated DNA-binding transcription factor, especially in type I and type II interferon signaling.
GO:0003677 DNA binding
IEA
GO_REF:0000120
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0003700 DNA-binding transcription factor activity
IEA
GO_REF:0000002
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0005634 nucleus
IEA
GO_REF:0000044
ACCEPT
Summary: nucleus localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005654 nucleoplasm
IEA
GO_REF:0000117
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005737 cytoplasm
IEA
GO_REF:0000044
ACCEPT
Summary: cytoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
IEA
GO_REF:0000117
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0006351 DNA-templated transcription
IEA
GO_REF:0000043
KEEP AS NON CORE
Summary: DNA-templated transcription pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0006355 regulation of DNA-templated transcription
IEA
GO_REF:0000002
ACCEPT
Summary: Direct STAT1 transcriptional regulation
Reason: This term directly reflects STAT1-mediated regulation of target-gene transcription after cytokine-induced activation.
GO:0007165 signal transduction
IEA
GO_REF:0000002
KEEP AS NON CORE
Summary: signal transduction pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0007259 cell surface receptor signaling pathway via JAK-STAT
IEA
GO_REF:0000117
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0008283 cell population proliferation
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: cell population proliferation pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0042981 regulation of apoptotic process
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: regulation of apoptotic process pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0051093 negative regulation of developmental process
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: negative regulation of developmental process pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0051607 defense response to virus
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: defense response to virus pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0060333 type II interferon-mediated signaling pathway
IEA
GO_REF:0000117
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0060337 type I interferon-mediated signaling pathway
IEA
GO_REF:0000117
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0005515 protein binding
IPI
PMID:22306691
The composition and signaling of the IL-35 receptor are unco...
MARK AS OVER ANNOTATED
Summary: Generic protein binding
Reason: Protein binding is too generic to describe STAT1 function and should be replaced by specific complex, DNA-binding, or transcription-factor annotations.
Supporting Evidence:
PMID:22306691
The composition and signaling of the IL-35 receptor are unconventional.
GO:0005515 protein binding
IPI
PMID:23749757
Construction of a novel oligonucleotide array-based transcri...
MARK AS OVER ANNOTATED
Summary: Generic protein binding
Reason: Protein binding is too generic to describe STAT1 function and should be replaced by specific complex, DNA-binding, or transcription-factor annotations.
Supporting Evidence:
PMID:23749757
Jul 22. Construction of a novel oligonucleotide array-based transcription factor interaction assay platform and its uses for profiling STAT1 cofactors in mouse fibroblast cells.
GO:0005515 protein binding
IPI
PMID:24360797
Hepatic RIG-I predicts survival and interferon-Ξ± therapeutic...
MARK AS OVER ANNOTATED
Summary: Generic protein binding
Reason: Protein binding is too generic to describe STAT1 function and should be replaced by specific complex, DNA-binding, or transcription-factor annotations.
Supporting Evidence:
PMID:24360797
2013 Dec 19. Hepatic RIG-I predicts survival and interferon-Ξ± therapeutic response in hepatocellular carcinoma.
GO:0000785 chromatin
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: chromatin pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0000977 RNA polymerase II transcription regulatory region sequence-specific DNA binding
ISO
GO_REF:0000119
ACCEPT
Summary: RNA polymerase II transcription regulatory region sequence-specific DNA binding directly captures STAT1 DNA-binding transcription-factor activity.
Reason: STAT1 binds cytokine-responsive regulatory DNA as part of its core transcription factor function.
GO:0000978 RNA polymerase II cis-regulatory region sequence-specific DNA binding
ISO
GO_REF:0000119
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0000979 RNA polymerase II core promoter sequence-specific DNA binding
ISO
GO_REF:0000119
MODIFY
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 binds GAS and ISRE regulatory DNA elements downstream of interferon/cytokine signaling; these are better represented as RNA polymerase II cis-regulatory region sequence-specific DNA binding than as core-promoter binding.
GO:0000981 DNA-binding transcription factor activity, RNA polymerase II-specific
ISO
GO_REF:0000119
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
Supporting Evidence:
file:mouse/Stat1/Stat1-notes.md
STAT1 is a cytokine-activated DNA-binding transcription factor, especially in type I and type II interferon signaling.
GO:0001222 transcription corepressor binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: transcription corepressor binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0001223 transcription coactivator binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: transcription coactivator binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0001937 negative regulation of endothelial cell proliferation
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: negative regulation of endothelial cell proliferation pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0002230 positive regulation of defense response to virus by host
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: positive regulation of defense response to virus by host pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0003677 DNA binding
ISO
GO_REF:0000096
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0003690 double-stranded DNA binding
ISO
GO_REF:0000119
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0003700 DNA-binding transcription factor activity
ISO
GO_REF:0000119
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
GO:0005164 tumor necrosis factor receptor binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: tumor necrosis factor receptor binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0005634 nucleus
ISO
GO_REF:0000119
ACCEPT
Summary: nucleus localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005654 nucleoplasm
ISO
GO_REF:0000119
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005730 nucleolus
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: nucleolus pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0005737 cytoplasm
ISO
GO_REF:0000119
ACCEPT
Summary: cytoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
ISO
GO_REF:0000119
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0006357 regulation of transcription by RNA polymerase II
ISO
GO_REF:0000119
ACCEPT
Summary: Direct STAT1 transcriptional regulation
Reason: This term directly reflects STAT1-mediated regulation of target-gene transcription after cytokine-induced activation.
GO:0007259 cell surface receptor signaling pathway via JAK-STAT
ISO
GO_REF:0000119
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0016525 negative regulation of angiogenesis
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: negative regulation of angiogenesis pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0019899 enzyme binding
ISO
GO_REF:0000119
MARK AS OVER ANNOTATED
Summary: Generic enzyme binding annotation
Reason: The term is too broad to add useful information for STAT1 relative to specific DNA-binding and transcription-factor terms.
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: axon pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0030425 dendrite
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: dendrite pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0031730 CCR5 chemokine receptor binding
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: CCR5 chemokine receptor binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0032727 positive regulation of interferon-alpha production
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: positive regulation of interferon-alpha production pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0032991 protein-containing complex
ISO
GO_REF:0000119
MARK AS OVER ANNOTATED
Summary: Generic protein-containing complex annotation
Reason: The term is too broad to add useful information for STAT1 relative to specific DNA-binding and transcription-factor terms.
GO:0033209 tumor necrosis factor-mediated signaling pathway
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: tumor necrosis factor-mediated signaling pathway pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0034341 response to type II interferon
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: response to type II interferon pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0035035 histone acetyltransferase binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: histone acetyltransferase binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0035456 response to interferon-beta
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: response to interferon-beta pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0035458 cellular response to interferon-beta
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: cellular response to interferon-beta pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0038111 interleukin-7-mediated signaling pathway
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: interleukin-7-mediated signaling pathway pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0038113 interleukin-9-mediated signaling pathway
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: interleukin-9-mediated signaling pathway pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0042393 histone binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: histone binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0042802 identical protein binding
ISO
GO_REF:0000119
MARK AS OVER ANNOTATED
Summary: Generic identical protein binding annotation
Reason: The term is too broad to add useful information for STAT1 relative to specific DNA-binding and transcription-factor terms.
GO:0042803 protein homodimerization activity
ISO
GO_REF:0000119
MARK AS OVER ANNOTATED
Summary: Generic protein homodimerization activity annotation
Reason: The term is too broad to add useful information for STAT1 relative to specific DNA-binding and transcription-factor terms.
GO:0043124 negative regulation of canonical NF-kappaB signal transduction
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: negative regulation of canonical NF-kappaB signal transduction pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0043565 sequence-specific DNA binding
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: sequence-specific DNA binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0044389 ubiquitin-like protein ligase binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: ubiquitin-like protein ligase binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0045648 positive regulation of erythrocyte differentiation
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: positive regulation of erythrocyte differentiation pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0045893 positive regulation of DNA-templated transcription
ISO
GO_REF:0000119
ACCEPT
Summary: Direct STAT1 transcriptional regulation
Reason: This term directly reflects STAT1-mediated regulation of target-gene transcription after cytokine-induced activation.
GO:0045944 positive regulation of transcription by RNA polymerase II
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: positive regulation of transcription by RNA polymerase II pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0046427 positive regulation of receptor signaling pathway via JAK-STAT
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: positive regulation of receptor signaling pathway via JAK-STAT pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0046725 negative regulation by virus of viral protein levels in host cell
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: negative regulation by virus of viral protein levels in host cell pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0048471 perinuclear region of cytoplasm
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: perinuclear region of cytoplasm pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0051607 defense response to virus
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: defense response to virus pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0051721 protein phosphatase 2A binding
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: protein phosphatase 2A binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0060333 type II interferon-mediated signaling pathway
ISO
GO_REF:0000119
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0060337 type I interferon-mediated signaling pathway
ISO
GO_REF:0000119
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
GO:0061326 renal tubule development
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: renal tubule development pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0070106 interleukin-27-mediated signaling pathway
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: interleukin-27-mediated signaling pathway pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0070721 ISGF3 complex
ISO
GO_REF:0000119
ACCEPT
Summary: ISGF3 complex interaction or complex context
Reason: STAT1 is a core subunit of the STAT1/STAT2/IRF9 ISGF3 transcription factor complex during type I interferon signaling, so this complex-membership annotation is accurate even though the core molecular activity remains DNA-binding transcription factor activity.
GO:0071346 cellular response to type II interferon
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: cellular response to type II interferon pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0090575 RNA polymerase II transcription regulator complex
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: RNA polymerase II transcription regulator complex pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0097696 cell surface receptor signaling pathway via STAT
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: cell surface receptor signaling pathway via STAT pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:1990841 promoter-specific chromatin binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: promoter-specific chromatin binding pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0061326 renal tubule development
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: renal tubule development pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0043065 positive regulation of apoptotic process
IMP
PMID:10692450
Thrombin inhibits tumor cell growth in association with up-r...
KEEP AS NON CORE
Summary: positive regulation of apoptotic process pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
Supporting Evidence:
PMID:10692450
Thrombin inhibits tumor cell growth in association with up-regulation of p21(waf/cip1) and caspases via a p53-independent, STAT-1-dependent pathway.
GO:0045944 positive regulation of transcription by RNA polymerase II
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: positive regulation of transcription by RNA polymerase II pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0003700 DNA-binding transcription factor activity
IDA
PMID:37327784
Gasdermin D licenses MHCII induction to maintain food tolera...
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
Supporting Evidence:
file:mouse/Stat1/Stat1-uniprot.txt
associates with the Gasdermin-D, p13 cleavage product (13 kDa GSDMD) and promotes transcription of CIITA
GO:0000981 DNA-binding transcription factor activity, RNA polymerase II-specific
IDA
PMID:11972023
Requirement of Ca2+ and CaMKII for Stat1 Ser-727 phosphoryla...
ACCEPT
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 directly binds regulatory DNA elements and functions as a transcription factor downstream of interferon/cytokine signaling.
Supporting Evidence:
PMID:11972023
Requirement of Ca2+ and CaMKII for Stat1 Ser-727 phosphorylation in response to IFN-gamma.
file:mouse/Stat1/Stat1-notes.md
STAT1 is a cytokine-activated DNA-binding transcription factor, especially in type I and type II interferon signaling.
GO:0007259 cell surface receptor signaling pathway via JAK-STAT
IDA
PMID:11972023
Requirement of Ca2+ and CaMKII for Stat1 Ser-727 phosphoryla...
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
Supporting Evidence:
PMID:11972023
Requirement of Ca2+ and CaMKII for Stat1 Ser-727 phosphorylation in response to IFN-gamma.
GO:0034341 response to type II interferon
IDA
PMID:11972023
Requirement of Ca2+ and CaMKII for Stat1 Ser-727 phosphoryla...
KEEP AS NON CORE
Summary: response to type II interferon pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:11972023
Requirement of Ca2+ and CaMKII for Stat1 Ser-727 phosphorylation in response to IFN-gamma.
GO:0008283 cell population proliferation
IGI
PMID:15781341
Differential effects of a novel IFN-zeta/limitin and IFN-alp...
KEEP AS NON CORE
Summary: cell population proliferation pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
Supporting Evidence:
PMID:15781341
Differential effects of a novel IFN-zeta/limitin and IFN-alpha on signals for Daxx induction and Crk phosphorylation that couple with growth control of megakaryocytes.
GO:0051607 defense response to virus
IMP
PMID:32270034
IL-27 signaling activates skin cells to induce innate antivi...
KEEP AS NON CORE
Summary: defense response to virus pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:32270034
2020 Apr. IL-27 signaling activates skin cells to induce innate antiviral proteins and protects against Zika virus infection.
GO:0000979 RNA polymerase II core promoter sequence-specific DNA binding
ISS
GO_REF:0000024
MODIFY
Summary: Core STAT1 DNA-binding transcription factor activity
Reason: STAT1 binds GAS and ISRE regulatory DNA elements downstream of interferon/cytokine signaling; these are better represented as RNA polymerase II cis-regulatory region sequence-specific DNA binding than as core-promoter binding.
GO:0032727 positive regulation of interferon-alpha production
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: positive regulation of interferon-alpha production pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0042803 protein homodimerization activity
ISS
GO_REF:0000024
MARK AS OVER ANNOTATED
Summary: Generic protein homodimerization activity annotation
Reason: The term is too broad to add useful information for STAT1 relative to specific DNA-binding and transcription-factor terms.
GO:0051607 defense response to virus
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: defense response to virus pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
GO:0005654 nucleoplasm
TAS
Reactome:R-MMU-9676907
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005654 nucleoplasm
TAS
Reactome:R-MMU-9705459
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005654 nucleoplasm
TAS
Reactome:R-MMU-9705472
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005654 nucleoplasm
TAS
Reactome:R-MMU-9943422
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005654 nucleoplasm
TAS
Reactome:R-MMU-9943424
ACCEPT
Summary: nucleoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0045648 positive regulation of erythrocyte differentiation
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: positive regulation of erythrocyte differentiation pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0071345 cellular response to cytokine stimulus
ISO
PMID:19414010
JANEX-1, a JAK3 inhibitor, protects pancreatic islets from c...
KEEP AS NON CORE
Summary: cellular response to cytokine stimulus pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:19414010
Epub 2009 May 3. JANEX-1, a JAK3 inhibitor, protects pancreatic islets from cytokine toxicity through downregulation of NF-kappaB activation and the JAK/STAT pathway.
GO:0034340 response to type I interferon
IDA
PMID:24882218
Unanchored K48-linked polyubiquitin synthesized by the E3-ub...
KEEP AS NON CORE
Summary: response to type I interferon pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:24882218
2014 May 29. Unanchored K48-linked polyubiquitin synthesized by the E3-ubiquitin ligase TRIM6 stimulates the interferon-IKKΞ΅ kinase-mediated antiviral response.
GO:0071222 cellular response to lipopolysaccharide
IMP
PMID:21606371
Glucocorticoids target suppressor of cytokine signaling 1 (S...
KEEP AS NON CORE
Summary: cellular response to lipopolysaccharide pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:21606371
Glucocorticoids target suppressor of cytokine signaling 1 (SOCS1) and type 1 interferons to regulate Toll-like receptor-induced STAT1 activation.
GO:0005829 cytosol
TAS
Reactome:R-MMU-1169206
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9674908
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9674931
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9676907
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9676912
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9680646
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9682158
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9682182
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0060337 type I interferon-mediated signaling pathway
IMP
PMID:24598055
TLR ligands up-regulate Trex1 expression in murine conventio...
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
Supporting Evidence:
PMID:24598055
Mar 5. TLR ligands up-regulate Trex1 expression in murine conventional dendritic cells through type I Interferon and NF-ΞΊB-dependent signaling pathways.
GO:0034240 negative regulation of macrophage fusion
IMP
PMID:22865856
An essential role for STAT6-STAT1 protein signaling in promo...
KEEP AS NON CORE
Summary: negative regulation of macrophage fusion pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
Supporting Evidence:
PMID:22865856
2012 Aug 3. An essential role for STAT6-STAT1 protein signaling in promoting macrophage cell-cell fusion.
GO:0060333 type II interferon-mediated signaling pathway
IMP
PMID:12138178
Identification of a nuclear Stat1 protein tyrosine phosphata...
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
Supporting Evidence:
PMID:12138178
Identification of a nuclear Stat1 protein tyrosine phosphatase.
GO:0060337 type I interferon-mediated signaling pathway
IMP
PMID:12138178
Identification of a nuclear Stat1 protein tyrosine phosphata...
ACCEPT
Summary: Core interferon/JAK-STAT signaling role
Reason: STAT1 is a direct transcription factor effector of type I and type II interferon JAK-STAT signaling.
Supporting Evidence:
PMID:12138178
Identification of a nuclear Stat1 protein tyrosine phosphatase.
GO:0000122 negative regulation of transcription by RNA polymerase II
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: negative regulation of transcription by RNA polymerase II pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0002053 positive regulation of mesenchymal cell proliferation
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: positive regulation of mesenchymal cell proliferation pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0003340 negative regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: negative regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0072136 metanephric mesenchymal cell proliferation involved in metanephros development
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: metanephric mesenchymal cell proliferation involved in metanephros development pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0072162 metanephric mesenchymal cell differentiation
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: metanephric mesenchymal cell differentiation pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
GO:0072308 negative regulation of metanephric nephron tubule epithelial cell differentiation
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: negative regulation of metanephric nephron tubule epithelial cell differentiation pathway context
Reason: This regulatory annotation is plausible for STAT1 biology but is broader or more downstream than the core transcription-factor function.
GO:0005829 cytosol
TAS
Reactome:R-MMU-1169142
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9008004
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005829 cytosol
TAS
Reactome:R-MMU-9674959
ACCEPT
Summary: cytosol localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
GO:0005737 cytoplasm
IDA
PMID:15661922
Immune activation of type I IFNs by Listeria monocytogenes o...
ACCEPT
Summary: cytoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
Supporting Evidence:
PMID:15661922
Immune activation of type I IFNs by Listeria monocytogenes occurs independently of TLR4, TLR2, and receptor interacting protein 2 but involves TNFR-associated NF kappa B kinase-binding kinase 1.
GO:0009617 response to bacterium
IDA
PMID:15661922
Immune activation of type I IFNs by Listeria monocytogenes o...
KEEP AS NON CORE
Summary: response to bacterium pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:15661922
Immune activation of type I IFNs by Listeria monocytogenes occurs independently of TLR4, TLR2, and receptor interacting protein 2 but involves TNFR-associated NF kappa B kinase-binding kinase 1.
GO:0019221 cytokine-mediated signaling pathway
IDA
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independ...
KEEP AS NON CORE
Summary: cytokine-mediated signaling pathway pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
Supporting Evidence:
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independent TIR signalling.
GO:0031663 lipopolysaccharide-mediated signaling pathway
IDA
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independ...
KEEP AS NON CORE
Summary: lipopolysaccharide-mediated signaling pathway pathway context
Reason: The annotation is compatible with STAT1 cytokine-response biology but represents a pathway, localization, or downstream process rather than the core molecular function.
Supporting Evidence:
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independent TIR signalling.
GO:0032496 response to lipopolysaccharide
IDA
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independ...
KEEP AS NON CORE
Summary: response to lipopolysaccharide pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independent TIR signalling.
GO:0043330 response to exogenous dsRNA
IDA
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independ...
KEEP AS NON CORE
Summary: response to exogenous dsRNA pathway context
Reason: This term describes an upstream stimulus or immune outcome of STAT1 activation, not its core molecular activity.
Supporting Evidence:
PMID:12872135
Identification of Lps2 as a key transducer of MyD88-independent TIR signalling.
GO:0003700 DNA-binding transcription factor activity
IMP
PMID:15485925
Interferon-inducible ubiquitin E2, Ubc8, is a conjugating en...
UNDECIDED
Summary: PMID:15485925 supports Ubc8/ISGylation in the cached abstract but does not directly mention STAT1 DNA-binding transcription factor activity.
Reason: Direct STAT1 evidence from full text or another source would be needed before accepting this PMID-specific annotation.
GO:0006351 DNA-templated transcription
IMP
PMID:15485925
Interferon-inducible ubiquitin E2, Ubc8, is a conjugating en...
UNDECIDED
Summary: PMID:15485925 supports Ubc8/ISGylation in the cached abstract but does not directly mention STAT1-dependent transcription.
Reason: Direct STAT1 transcription evidence from full text or another source would be needed before accepting this PMID-specific annotation.
GO:0005634 nucleus
IDA
PMID:12957148
Erythrocyte and leukocyte dynamics in the retinal capillarie...
UNDECIDED
Summary: PMID:12957148 is a retinal capillary dynamics paper in the cached abstract and does not directly support STAT1 nuclear localization.
Reason: Full-text or corrected evidence would be needed before accepting this evidence-specific nucleus annotation.
GO:0005737 cytoplasm
IDA
PMID:14522949
Beta1 integrins regulate chondrocyte rotation, G1 progressio...
UNDECIDED
Summary: PMID:14522949 supports nuclear translocation of Stat1/Stat5a in the cached abstract, not cytoplasmic localization.
Reason: Full-text or corrected cytoplasmic localization evidence would be needed before accepting this evidence-specific annotation.
GO:0005737 cytoplasm
IDA
PMID:12634107
Expression and activation of STAT proteins during mouse reti...
ACCEPT
Summary: cytoplasm localization
Reason: STAT1 shuttles between cytoplasm/cytosol and nucleus during activation and transcriptional response.
Supporting Evidence:
PMID:12634107
Expression and activation of STAT proteins during mouse retina development.

Core Functions

STAT1 binds cytokine-responsive regulatory DNA as an RNA polymerase II transcription factor after interferon/JAK-STAT pathway activation.

Supporting Evidence:
  • file:mouse/Stat1/Stat1-notes.md
    STAT1 is a cytokine-activated DNA-binding transcription factor, especially in type I and type II interferon signaling.
  • file:mouse/Stat1/Stat1-deep-research-falcon.md
    Falcon synthesis supports STAT1 as a cytokine/interferon-activated transcription factor that binds regulatory DNA downstream of JAK phosphorylation and nuclear translocation.

References

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Deep Research

Falcon

(Stat1-deep-research-falcon.md)

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πŸ“š Additional Documentation

Notes

(Stat1-notes.md)

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πŸ“„ View Raw YAML

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