GNB1

UniProt ID: P62873
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

GNB1 encodes guanine nucleotide-binding protein subunit beta-1 (Gbeta1), a seven-bladed WD40 beta-propeller that forms an obligate dimer with a Ggamma subunit and, with a Galpha subunit, makes up the heterotrimeric G proteins that transduce signals from G protein-coupled receptors (GPCRs). Gbeta1 is the most widely used Gbeta, found in Gi/o, Gs, Gq/11 and rod transducin heterotrimers. Within the heterotrimer it binds the switch II region of GDP-bound Galpha and contacts the receptor, which promotes receptor-catalysed GDP/GTP exchange on Galpha; Gbeta itself has no nucleotide-binding or GTPase activity. After activation, the released, membrane-anchored (Ggamma-prenylated) Gbeta1gamma dimer directly regulates effectors, including opening G protein-gated inwardly rectifying K+ (GIRK) channels and stimulating phospholipase C-beta. Germline de novo GNB1 missense variants that disrupt the Galpha or effector interfaces cause a neurodevelopmental disorder with hypotonia and seizures (MRD42), and recurrent somatic mutations occur in myeloid and lymphoid neoplasms.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0001750 photoreceptor outer segment
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: GNB1 is the beta subunit of rod transducin and is present in photoreceptor outer segments.
Reason: Transferred from mouse Gnb1 (Ensembl Compara). Gbeta1 is the transducin beta subunit, so this location is correct, but it is tissue-specific and not the general site of action.
Supporting Evidence:
PMID:3095147
This work proves for the first time that the beta-subunits of all signal-transducing G-proteins, including transducin, are the same.
GO:0003924 GTPase activity
IDA
PMID:1543505
Diversity among the beta subunits of heterotrimeric GTP-bind...
REMOVE
Summary: GTPase activity attributed to Gbeta1.
Reason: Gbeta is a seven-bladed WD40 beta-propeller with no nucleotide-binding domain. GDP/GTP exchange and GTP hydrolysis take place on the Galpha subunit of the heterotrimer. Gbetagamma is needed for receptor coupling of Galpha but does not catalyse GTP hydrolysis. The cited papers are cDNA cloning studies (PMID:3095147, human Gbeta; PMID:1543505, mouse Gbeta4) and their abstracts report no GTPase assay on Gbeta. The activity of the heterotrimer is captured on GNB1 by its complex membership (GO:0005834) and its G-protein alpha-subunit binding. The same framework is applied to GNG2; the beta and gamma chains are required for the heterotrimer's GTPase activity, which is a contributes_to relationship to the heterotrimer's nucleotide-cycling activity, not an enables claim on the subunit.
Supporting Evidence:
PMID:8521505
Repeated WD motifs in beta form a circularized sevenfold beta propeller.
PMID:31300275
activates the G-protein transducin (GT) by catalyzing GDP-GTP exchange on its Ξ± subunit (GΞ±T)
PMID:1543505
The beta and gamma subunits are thought to have a more passive role in G protein function
GO:0003924 GTPase activity
TAS
PMID:3095147
Beta-subunits of the human liver Gs/Gi signal-transducing pr...
REMOVE
Summary: GTPase activity attributed to Gbeta1.
Reason: Gbeta is a seven-bladed WD40 beta-propeller with no nucleotide-binding domain. GDP/GTP exchange and GTP hydrolysis take place on the Galpha subunit of the heterotrimer. Gbetagamma is needed for receptor coupling of Galpha but does not catalyse GTP hydrolysis. The cited papers are cDNA cloning studies (PMID:3095147, human Gbeta; PMID:1543505, mouse Gbeta4) and their abstracts report no GTPase assay on Gbeta. The activity of the heterotrimer is captured on GNB1 by its complex membership (GO:0005834) and its G-protein alpha-subunit binding. The same framework is applied to GNG2; the beta and gamma chains are required for the heterotrimer's GTPase activity, which is a contributes_to relationship to the heterotrimer's nucleotide-cycling activity, not an enables claim on the subunit.
Supporting Evidence:
PMID:8521505
Repeated WD motifs in beta form a circularized sevenfold beta propeller.
PMID:31300275
activates the G-protein transducin (GT) by catalyzing GDP-GTP exchange on its Ξ± subunit (GΞ±T)
PMID:1543505
The beta and gamma subunits are thought to have a more passive role in G protein function
GO:0005515 protein binding
IPI
PMID:16782902
Activation state-dependent interaction between Galphai and p...
MODIFY
Summary: GNB1 binds GNAI2 (this study); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI2 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:16782902
Indeed, FLAG-tagged GΞ²1 was found to bind to p67 phox only when GΞ±i2 was overexpressed in the cells.
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:16782902
Activation state-dependent interaction between Galphai and p...
REMOVE
Summary: Interaction of GNB1 with NCF2 (p67phox) reported in this study.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false. The cited study shows that the Gbetagamma-p67phox association is indirect and requires GDP-bound Galphai.
Supporting Evidence:
PMID:16782902
Based on these data, we concluded that the association between GΞ²Ξ³ and p67 phox is indirect and mediated through the inactive, GDP-bound GΞ±i.
GO:0005515 protein binding
IPI
PMID:17500595
Huntingtin interacting proteins are genetic modifiers of neu...
REMOVE
Summary: Interaction of GNB1 with HTT (huntingtin) reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false.
GO:0005515 protein binding
IPI
PMID:23739333
X-ray structure of the mammalian GIRK2-Ξ²Ξ³ G-protein complex.
MODIFY
Summary: GNB1 binds GNG2 (this study), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:23739333
The structure was solved with Phaser52 by sequentially searching for a GIRK2 monomer (PDB id: 3SYA) and then a GΞ²1Ξ³2 dimer
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:25036637
A quantitative chaperone interaction network reveals the arc...
REMOVE
Summary: Interaction of GNB1 with PFDN5 (prefoldin subunit 5) reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false. Prefoldin/CCT chaperone association reflects Gbeta folding as a chaperone client, not a Gbeta function.
GO:0005515 protein binding
IPI
PMID:25416956
A proteome-scale map of the human interactome network.
MODIFY
Summary: GNB1 binds GNG5 (a high-throughput interaction screen), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG5; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:25733868
Comprehensive analysis of heterotrimeric G-protein complex d...
MODIFY
Summary: GNB1 binds GNG2 (this study), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:25733868
Comprehensive analysis of heterotrimeric G-protein complex d...
MODIFY
Summary: GNB1 binds GNAI1 (this study); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI1 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:25733868
Comprehensive analysis of heterotrimeric G-protein complex d...
MODIFY
Summary: GNB1 binds GNG5 (this study), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG5; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:28437792
Phase-plate cryo-EM structure of a class B GPCR-G-protein co...
MODIFY
Summary: GNB1 binds GNG2 (this study), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:28437792
infected with 3 separate baculovirus at a ratio of 1:2:2 for hCTR, GΞ±s and GΞ²1Ξ³2
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:28514442
Architecture of the human interactome defines protein commun...
MODIFY
Summary: GNB1 binds GNAI1 (a high-throughput interaction screen); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI1 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: Interaction of GNB1 with VAC14 reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: Interaction of GNB1 with CTNNA3 isoform 2 reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false.
GO:0005515 protein binding
IPI
PMID:32371397
Cryo-electron microscopy structure of the glucagon receptor ...
MODIFY
Summary: GNB1 binds GNG2 (this study), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:32371397
thereby stabilizing the interaction with Ξ²Ξ³ subunits
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:32528175
Structure of a D2 dopamine receptor-G-protein complex in a l...
MODIFY
Summary: GNB1 binds GNG2 (this study), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:32528175
An additional pFastBac-Dual baculovirus was made with human GΞ²1 and human GΞ³2 genes.
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
REMOVE
Summary: Interaction of GNB1 with P4HB reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false.
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
REMOVE
Summary: Interaction of GNB1 with HTT (huntingtin) reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false.
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
REMOVE
Summary: Interaction of GNB1 with DPF1 isoform 2 reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false.
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
MODIFY
Summary: GNB1 binds GNAI2 (a high-throughput interaction screen); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI2 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
MODIFY
Summary: GNB1 binds GNG2 (a high-throughput interaction screen), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
MODIFY
Summary: GNB1 binds GNG5 (a high-throughput interaction screen), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG5; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
REMOVE
Summary: Interaction of GNB1 with PFDN5 (prefoldin subunit 5) reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false. Prefoldin/CCT chaperone association reflects Gbeta folding as a chaperone client, not a Gbeta function.
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
MODIFY
Summary: GNB1 binds GNAI2 (a high-throughput interaction screen); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI2 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
MODIFY
Summary: GNB1 binds GNG2 (a high-throughput interaction screen), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG2; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
MODIFY
Summary: GNB1 binds GNG5 (a high-throughput interaction screen), forming the obligate Gbetagamma dimer.
Reason: Gbeta1 forms an obligate dimer with Ggamma subunits including GNG5; the beta-gamma interface is extensive. Generic protein binding is uninformative; the specific function is G-protein gamma-subunit binding.
Proposed replacements: G-protein gamma-subunit binding
Supporting Evidence:
PMID:8521505
an extended interface between beta and nearly all of gamma
GO:0005515 protein binding
IPI
PMID:35501348
Activation and allosteric regulation of the orphan GPR88-Gi1...
MODIFY
Summary: GNB1 binds GNAI1 (this study); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI1 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:35501348
N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
MODIFY
Summary: GNB1 binds GNAI1 (a high-throughput interaction screen); Gbeta1 is the beta subunit of Gi heterotrimers.
Reason: The interaction with GNAI1 is the Galpha-Gbetagamma interface of the heterotrimer, which is well established structurally (two Galpha contact regions on the Gbeta propeller). Generic protein binding is uninformative; the specific function is G-protein alpha-subunit binding.
Proposed replacements: G-protein alpha-subunit binding
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
GO:0005515 protein binding
IPI
PMID:40205054
Multimodal cell maps as a foundation for structural and func...
REMOVE
Summary: Interaction of GNB1 with PFDN5 (prefoldin subunit 5) reported in a high-throughput interaction screen.
Reason: Bare protein binding is uninformative and no specific molecular function of GNB1 is established by this interaction; removal does not imply the interaction is false. Prefoldin/CCT chaperone association reflects Gbeta folding as a chaperone client, not a Gbeta function.
GO:0005737 cytoplasm
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: Gbeta is a cytoplasmic-side protein (PAINT IBA).
Reason: True but broad. Gbetagamma acts at the cytoplasmic face of the plasma membrane and endomembranes. The more informative locations (plasma membrane, heterotrimeric G-protein complex) are accepted separately.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005765 lysosomal membrane
HDA
PMID:17897319
Integral and associated lysosomal membrane proteins.
KEEP AS NON CORE
Summary: Detected in a lysosomal membrane proteomics study (HDA).
Reason: High-throughput proteomic detection. Gbetagamma can associate with endomembranes, but lysosomal localization has no functional support and is not core.
GO:0005829 cytosol
TAS
Reactome:R-HSA-1013012
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-1013013
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-1013020
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-112271
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-114552
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-114558
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-167408
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-167419
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-167429
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-167433
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-379044
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-379048
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-380073
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392187
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392195
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392202
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392295
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392300
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392852
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-392870
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-3965444
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-3965447
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-396996
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-397835
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-397891
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-398040
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-398193
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-418576
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-420883
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-428749
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-428750
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-428752
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-428909
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-428917
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-428918
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-500717
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-6814119
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-6814120
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-6814121
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-6814124
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-6814418
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-744886
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-744887
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-749446
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-749448
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-749452
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-749453
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-749454
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-749456
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-750988
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-750993
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751001
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751013
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751019
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751024
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751027
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751029
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-751039
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-825631
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8850527
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8850560
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964241
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964271
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964317
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964599
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964604
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964605
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964614
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8964634
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8982637
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-8982640
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9021600
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9021601
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9036301
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9036307
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9036308
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9660819
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9660824
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005829 cytosol
TAS
Reactome:R-HSA-9660828
KEEP AS NON CORE
Summary: Reactome places the Gbetagamma dimer in the cytosol compartment for this reaction.
Reason: Gbetagamma acts on the cytoplasmic side of membranes. The prenylated Gbetagamma dimer is anchored to the inner face of the plasma membrane, so 'cytosol' is only approximately right for the active dimer. Newly made Gbeta is folded and assembled with Ggamma in the cytosol, so the location is not wrong. Plasma membrane / heterotrimeric G-protein complex are the core locations.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0005834 heterotrimeric G-protein complex
IBA
GO_REF:0000033
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
PMID:42870023
WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
GO:0005834 heterotrimeric G-protein complex
IDA
PMID:1543505
Diversity among the beta subunits of heterotrimeric GTP-bind...
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:1543505
The beta and gamma subunits are thought to have a more passive role in G protein function
GO:0005834 heterotrimeric G-protein complex
IDA
PMID:29925951
Cryo-EM structure of the serotonin 5-HT(1B) receptor coupled...
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:29925951
assembled into a complex containing 5-HT1BR, donitriptan, mini-GO, Ξ²1 and Ξ³2 subunits
PMID:42870023
WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
GO:0005834 heterotrimeric G-protein complex
IDA
PMID:33762731
Structural insights into the lipid and ligand regulation of ...
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:33762731
Here we report five structures of 5-HT receptor-G-protein
PMID:42870023
WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
GO:0005834 heterotrimeric G-protein complex
IDA
PMID:34239069
Structural basis for recognition of anti-migraine drug lasmi...
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:34239069
Although the conformations of the main interfaces between receptor and G protein are similar, the G protein conformation shows observable changes.
PMID:42870023
WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
GO:0005834 heterotrimeric G-protein complex
IEA
GO_REF:0000107
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:25733868
G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
PMID:42870023
WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
GO:0005834 heterotrimeric G-protein complex
IPI
PMID:35501348
Activation and allosteric regulation of the orphan GPR88-Gi1...
ACCEPT
Summary: GNB1 is the beta subunit of heterotrimeric G proteins (Galpha-Gbeta1-Ggamma).
Reason: Gbeta1 is the prototypical Gbeta of Gi/o, Gs, Gq and transducin heterotrimers. It is used in essentially every reconstituted GPCR-G protein structure (5-HT1B, 5-HT1F, D2, CTR, GPR88, muOR), and coIP shows it forms heterotrimers with essentially all Ggamma partners. Core cellular component.
Supporting Evidence:
PMID:35501348
N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector
PMID:42870023
WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
GO:0005886 plasma membrane
IPI
PMID:35501348
Activation and allosteric regulation of the orphan GPR88-Gi1...
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-167419
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-167429
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-9712210
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-9717206
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-9728723
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-9728748
MODIFY
Summary: Gbetagamma (and the heterotrimer) is located at the cytoplasmic face of the plasma membrane.
Reason: Ggamma prenylation anchors Gbetagamma to the inner leaflet of the plasma membrane, where it couples to GPCRs and activates membrane effectors such as GIRK channels. Core location. The more specific supported term is cytoplasmic side of plasma membrane (GO:0009898), supported by the inner-leaflet anchoring/recruitment evidence though not yet a separate GOA row -- the protein is lipid-anchored or recruited to the inner (cytoplasmic) leaflet and faces the cytosol, not the cell exterior.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0007165 signal transduction
IEA
GO_REF:0000002
MODIFY
Summary: Gbetagamma participates in signal transduction.
Reason: Correct but too general. Gbeta1 acts in GPCR signaling, as the beta subunit that couples Galpha to activated receptors and, once released, as an effector-regulating Gbetagamma dimer. The specific supported term is G protein-coupled receptor signaling pathway (GO:0007186), which the gene already carries (IBA).
Supporting Evidence:
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0007165 signal transduction
TAS
PMID:7649993
Mitogen-activated protein kinase activation requires two sig...
MODIFY
Summary: Gbetagamma participates in signal transduction.
Reason: Correct but too general. Gbeta1 acts in GPCR signaling, as the beta subunit that couples Galpha to activated receptors and, once released, as an effector-regulating Gbetagamma dimer. The specific supported term is G protein-coupled receptor signaling pathway (GO:0007186), which the gene already carries (IBA).
Supporting Evidence:
PMID:7649993
two independent signals are required for the maximal activation of MAP kinase by G protein-coupled receptors
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0007165 signal transduction
TAS
PMID:8717044
Phosphorylation-dependent activation of the Ras-GRF/CDC25Mm ...
MODIFY
Summary: Gbetagamma participates in signal transduction.
Reason: Correct but too general. Gbeta1 acts in GPCR signaling, as the beta subunit that couples Galpha to activated receptors and, once released, as an effector-regulating Gbetagamma dimer. The specific supported term is G protein-coupled receptor signaling pathway (GO:0007186), which the gene already carries (IBA).
Supporting Evidence:
PMID:8717044
cotransfection with G-protein beta gamma subunits caused a constitutive activation that was sensitive to PP1
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0007186 G protein-coupled receptor signaling pathway
IBA
GO_REF:0000033
ACCEPT
Summary: Gbeta1 is a core component of GPCR signaling via heterotrimeric G proteins.
Reason: Gbeta1gamma is required for receptor coupling of Galpha and, when released, directly regulates effectors (GIRK channels, PLC-beta). The PAINT IBA placement over the Gbeta family is sound, and GPCR-Gi1 structures with Gbeta1 support the NAS row.
Supporting Evidence:
PMID:35501348
N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
PMID:1606965
beta gamma subunits, purified from bovine retinal transducin (beta gamma t), markedly stimulated the hydrolysis of phosphatidylinositol 4,5-bisphosphate by this phospholipase C preparation
GO:0007186 G protein-coupled receptor signaling pathway
NAS
PMID:35501348
Activation and allosteric regulation of the orphan GPR88-Gi1...
ACCEPT
Summary: Gbeta1 is a core component of GPCR signaling via heterotrimeric G proteins.
Reason: Gbeta1gamma is required for receptor coupling of Galpha and, when released, directly regulates effectors (GIRK channels, PLC-beta). The PAINT IBA placement over the Gbeta family is sound, and GPCR-Gi1 structures with Gbeta1 support the NAS row.
Supporting Evidence:
PMID:35501348
N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
PMID:1606965
beta gamma subunits, purified from bovine retinal transducin (beta gamma t), markedly stimulated the hydrolysis of phosphatidylinositol 4,5-bisphosphate by this phospholipase C preparation
GO:0007191 adenylate cyclase-activating dopamine receptor signaling pathway
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: ISS from bovine Gnb1 (P62871), based on reconstitution of D1 receptor-Gs-adenylyl cyclase signaling with Gbeta1gamma2.
Reason: Gbeta1gamma2 supported D1-receptor-Galphas-ACVI coupling in a reconstituted system. This is true but is one of many GPCR pathways Gbeta1 serves, and is non-core.
Supporting Evidence:
PMID:18403039
BV co-expressing DR-D1, Galpha(s), Gbeta(1)gamma(2), and ACVI also responded to dopamine agonists and an antagonist.
GO:0007213 G protein-coupled acetylcholine receptor signaling pathway
TAS
PMID:8717044
Phosphorylation-dependent activation of the Ras-GRF/CDC25Mm ...
KEEP AS NON CORE
Summary: Muscarinic receptor signaling via Gbetagamma to Ras-GRF.
Reason: Gbetagamma mediates muscarinic receptor activation of Ras-GRF. This is a valid GPCR context, and Gbeta1 is part of the Gi/Gq heterotrimers that muscarinic receptors use. Specific receptor context, non-core.
Supporting Evidence:
PMID:8717044
cotransfection with G-protein beta gamma subunits caused a constitutive activation that was sensitive to PP1
GO:0007265 Ras protein signal transduction
TAS
PMID:8717044
Phosphorylation-dependent activation of the Ras-GRF/CDC25Mm ...
MARK AS OVER ANNOTATED
Summary: Gbetagamma activates the Ras exchange factor Ras-GRF.
Reason: Gbetagamma acts upstream of Ras by stimulating Ras-GRF exchange activity through a phosphorylation-dependent mechanism. It is not a component of the Ras-initiated signaling cascade itself, so 'Ras protein signal transduction' over-states its role. The upstream contribution is covered by GPCR signaling.
Supporting Evidence:
PMID:8717044
cotransfection with G-protein beta gamma subunits caused a constitutive activation that was sensitive to PP1
GO:0016004 phospholipase activator activity
ISS
GO_REF:0000024
ACCEPT
Summary: Gbetagamma directly stimulates phospholipase C-beta.
Reason: Purified transducin betagamma (Gbeta1gamma1) and brain betagamma stimulate PIP2 hydrolysis by PLC-beta. This is a canonical Gbetagamma effector activity, and the ISS from bovine Gnb1 is well founded.
Supporting Evidence:
PMID:1606965
beta gamma subunits, purified from bovine retinal transducin (beta gamma t), markedly stimulated the hydrolysis of phosphatidylinositol 4,5-bisphosphate by this phospholipase C preparation
GO:0016020 membrane
ISS
GO_REF:0000024
MODIFY
Summary: Gbetagamma is membrane-associated.
Reason: Correct but general. Gbeta1gamma is anchored to the cytoplasmic face of the plasma membrane via Ggamma prenylation, so it faces the cytosol rather than the cell exterior. Replace with cytoplasmic side of plasma membrane (GO:0009898), the specific inner-leaflet descendant.
Supporting Evidence:
PMID:42870023
The main peak containing prenylated GΞ²Ξ³ was dialyzed
GO:0030159 signaling receptor complex adaptor activity
IBA
GO_REF:0000033
ACCEPT
Summary: PAINT/ISS term for the Gbeta scaffolding role within receptor-G protein complexes.
Reason: Gbeta1 is a structural WD40 scaffold that holds Galpha and Ggamma together and contacts the receptor (ICL1/helix 8) in GPCR-G protein complexes. GO represents this role across the Gbeta family as signaling receptor complex adaptor activity, and the PAINT node placement is sound.
Supporting Evidence:
PMID:8521505
Repeated WD motifs in beta form a circularized sevenfold beta propeller.
PMID:35501348
N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector
GO:0030159 signaling receptor complex adaptor activity
ISS
GO_REF:0000024
ACCEPT
Summary: PAINT/ISS term for the Gbeta scaffolding role within receptor-G protein complexes.
Reason: Gbeta1 is a structural WD40 scaffold that holds Galpha and Ggamma together and contacts the receptor (ICL1/helix 8) in GPCR-G protein complexes. GO represents this role across the Gbeta family as signaling receptor complex adaptor activity, and the PAINT node placement is sound.
Supporting Evidence:
PMID:8521505
Repeated WD motifs in beta form a circularized sevenfold beta propeller.
PMID:35501348
N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector
GO:0044877 protein-containing complex binding
IDA
PMID:23209302
KIF14 negatively regulates Rap1a-Radil signaling during brea...
KEEP AS NON CORE
Summary: Gbetagamma associates with Radil-Rap1 complexes.
Reason: Gbetagamma co-purifies with the Rap1 effector Radil and promotes Rap1-dependent integrin activation. The interaction is real, but 'protein-containing complex binding' is uninformative and peripheral to core function.
Supporting Evidence:
PMID:23209302
We previously identified the Rap1 effector Radil as a protein associating with GΞ²Ξ³ subunits of heterotrimeric G-proteins
GO:0045202 synapse
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Synapse localization transferred from mouse Gnb1.
Reason: Gbetagamma acts at synapses, for example in GIRK activation and presynaptic inhibition, but synapse is a tissue-context location. Non-core.
Supporting Evidence:
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:0051020 GTPase binding
IPI
PMID:19255495
The cationic region of Rhes mediates its interactions with s...
KEEP AS NON CORE
Summary: Gbeta1 binds the small GTPase Rhes (RASD2) in yeast two-hybrid.
Reason: Rhes binds Gbeta1, Gbeta2 and Gbeta3 via its cationic region. This is a plausible regulatory interaction but has no clear role in Gbeta1 function. Non-core.
Supporting Evidence:
PMID:19255495
we have used yeast two-hybrid studies to show that Rhes binds selectively to Gbeta1, Gbeta2 and Gbeta3 subunits
GO:0070062 extracellular exosome
HDA
PMID:19056867
Large-scale proteomics and phosphoproteomics of urinary exos...
KEEP AS NON CORE
Summary: Detected in exosome proteomics (HDA).
Reason: Gbeta1 is an abundant, ubiquitous membrane-associated protein that is commonly found in vesicle proteomes. The finding is accepted at face value but has no known functional significance.
GO:0070062 extracellular exosome
HDA
PMID:19199708
Proteomic analysis of human parotid gland exosomes by multid...
KEEP AS NON CORE
Summary: Detected in exosome proteomics (HDA).
Reason: Gbeta1 is an abundant, ubiquitous membrane-associated protein that is commonly found in vesicle proteomes. The finding is accepted at face value but has no known functional significance.
GO:0070062 extracellular exosome
HDA
PMID:20458337
MHC class II-associated proteins in B-cell exosomes and pote...
KEEP AS NON CORE
Summary: Detected in exosome proteomics (HDA).
Reason: Gbeta1 is an abundant, ubiquitous membrane-associated protein that is commonly found in vesicle proteomes. The finding is accepted at face value but has no known functional significance.
GO:0070062 extracellular exosome
HDA
PMID:23533145
In-depth proteomic analyses of exosomes isolated from expres...
KEEP AS NON CORE
Summary: Detected in exosome proteomics (HDA).
Reason: Gbeta1 is an abundant, ubiquitous membrane-associated protein that is commonly found in vesicle proteomes. The finding is accepted at face value but has no known functional significance.
GO:0071380 cellular response to prostaglandin E stimulus
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: ISS from bovine Gnb1, based on the same reconstitution study of Gs-coupled receptors.
Reason: Gbeta1gamma2 supports Gs-coupled receptor signaling in reconstitution, which plausibly includes prostaglandin E receptors. As a subunit of the heterotrimer Gbeta1 does take part. This is one receptor context among many, so it is non-core.
Supporting Evidence:
PMID:18403039
Furthermore, BV expressing two other Galpha(s)-coupled receptors together with Galpha(s), Gbeta(1)gamma(2), and ACVI also produced cAMP in response to their specific ligands.
GO:0071870 cellular response to catecholamine stimulus
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: ISS from bovine Gnb1, based on the same reconstitution study of Gs-coupled receptors.
Reason: As for prostaglandin E: Gbeta1gamma2 supports Gs-coupled (for example beta-adrenergic) receptor signaling. This is one receptor context among many, so it is non-core.
Supporting Evidence:
PMID:18403039
Furthermore, BV expressing two other Galpha(s)-coupled receptors together with Galpha(s), Gbeta(1)gamma(2), and ACVI also produced cAMP in response to their specific ligands.
GO:0097381 photoreceptor disc membrane
TAS
Reactome:R-HSA-2485182
KEEP AS NON CORE
Summary: Reactome places transducin Gbeta1gamma1 on the rod photoreceptor disc membrane.
Reason: Gbeta1 is the transducin beta subunit, so the location is correct in rods. It is tissue-specific and not core.
Supporting Evidence:
PMID:3095147
This work proves for the first time that the beta-subunits of all signal-transducing G-proteins, including transducin, are the same.
GO:0099104 potassium channel activator activity
IDA
PMID:23739333
X-ray structure of the mammalian GIRK2-Ξ²Ξ³ G-protein complex.
ACCEPT
Summary: Gbeta1gamma2 directly activates GIRK2 potassium channels.
Reason: The GIRK2-Gbeta1gamma2 crystal structure and reconstitution with purified components show that Gbetagamma alone, in PIP2-containing membranes, is sufficient to open GIRK channels. This is a canonical Gbetagamma effector activity.
Supporting Evidence:
PMID:23739333
GΞ²Ξ³ by itself is sufficient to activate the GIRK channel
PMID:23739333
The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open
GO:1903561 extracellular vesicle
HDA
PMID:24769233
Proteomic analysis of cerebrospinal fluid extracellular vesi...
KEEP AS NON CORE
Summary: Detected in cerebrospinal fluid extracellular vesicle proteomics (HDA).
Reason: Proteomic detection with no known functional significance. Non-core.

Core Functions

Structural beta subunit of heterotrimeric G proteins. The WD40 propeller binds Ggamma (obligate dimer) and GDP-bound Galpha, and contacts the activated receptor. This scaffolds the receptor-G protein complex and enables receptor-catalysed nucleotide exchange on Galpha in GPCR signaling.

Supporting Evidence:
  • PMID:8521505
    Repeated WD motifs in beta form a circularized sevenfold beta propeller.
  • PMID:8521505
    an extended interface between beta and nearly all of gamma
  • PMID:25733868
    G-protein combinations consisting of Ξ±i1 or Ξ±sL and all possible Ξ²Ξ³-dimers to form a heterotrimeric complex
  • PMID:42870023
    WT Gi heterotrimer (GΞ±i1Ξ²1Ξ³2) from Hi-5 cells was prepared similarly
  • PMID:35501348
    N-terminal 6 Γ— His-tagged WT human GΞ²1 and no-tag GΞ³2 were cloned into a pFastBac-Dual vector

Free Gbeta1gamma, released after receptor activation, directly binds and opens G protein-gated inwardly rectifying K+ (GIRK/Kir3) channels at the plasma membrane, mediating inhibitory GPCR control of cardiac and neuronal excitability.

Supporting Evidence:
  • PMID:23739333
    GΞ²Ξ³ by itself is sufficient to activate the GIRK channel
  • PMID:23739333
    The GΞ²Ξ³ subunits activate G protein-gated Inward Rectifier K+ (GIRK) channels, causing them to open

Free Gbeta1gamma directly stimulates phospholipase C-beta isozymes, increasing PIP2 hydrolysis downstream of GPCR activation.

Supporting Evidence:
  • PMID:1606965
    beta gamma subunits, purified from bovine retinal transducin (beta gamma t), markedly stimulated the hydrolysis of phosphatidylinositol 4,5-bisphosphate by this phospholipase C preparation

References

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Suggested Questions for Experts

Q: Does Gbeta1 actively hold the open Galpha alpha-helical domain during receptor-catalysed nucleotide exchange? The smFRET study of muOR-Gi suggests the open AHD is affixed against Gbeta, and rhodopsin-transducin structures show the AHD contacting Gbetagamma. If so, is a GO MF term needed for this role beyond 'G-protein alpha-subunit binding'?

Q: Do MRD42 GNB1 variants act mainly by weakening the Galpha interface (giving constitutive Gbetagamma signaling) or by impairing effector binding, and does this differ by residue?

Q: Is 'signaling receptor complex adaptor activity' the best GO MF representation of Gbeta's scaffolding role in the heterotrimer, or would 'G-protein alpha-subunit binding' plus 'G-protein gamma-subunit binding' be more accurate?

Suggested Experiments

Experiment: Mutate the predicted AHD-contacting residues on Gbeta1. In reconstituted muOR-Gi with labelled Galphai AHD, measure smFRET dwell times in the open state and GTPgammaS binding kinetics, comparing wild type and mutant Gbeta1gamma2.

Hypothesis: Gbeta1 surface residues that contact the open Galphai alpha-helical domain stabilise the open AHD state and speed GDP release.

Type: single-molecule FRET

Experiment: Express patient GNB1 variants with Ggamma2 and measure Galphai binding (BRET), basal and agonist-evoked GIRK currents, and PLC-beta activation in heterologous cells and iPSC-derived neurons.

Hypothesis: MRD42-associated GNB1 variants differentially affect Galpha binding versus GIRK/PLC-beta activation.

Type: electrophysiology and BRET

πŸ“š Additional Documentation

Notes

(GNB1-notes.md)

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