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Details on Person UniProt:P62871 GNB1

Class:IdReferenceGeneProduct:55378
_chainChangeLoginitiator methionine:1 added on Fri February 6 2015;chain:2-340 added on Fri February 6 2015;initiator methionine:1 for 55378 removed on Fri Nov 03 2023;initiator methionine: for 55378 added on Fri Nov 03 2023;initiator methionine: for 55378 removed on Fri Aug 15 2025;initiator methionine:1 for 55378 added on Fri Aug 15 2025
_displayNameUniProt:P62871 GNB1
_timestamp2026-02-20 21:59:26
chaininitiator methionine:1
chain:2-340
checksum896CBD32D2686598
commentFUNCTION Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction.SUBUNIT G proteins are composed of 3 units, alpha, beta and gamma (PubMed:8521505). The heterodimer formed by GNB1 and GNG2 interacts with ARHGEF5 (By similarity). The heterodimer formed by GNB1 and GNG2 interacts with GRK2 (PubMed:12764189). The heterodimer formed by GNB1 and GNG2 interacts with the ghrelin receptor GHSR (By similarity). Forms a complex with GNAO1 and GNG3 (By similarity). Interacts with ARHGEF18 and RASD2 (By similarity). Forms complexes with TAS2R14 and G-proteins; these complexes play a role in the perception of bitterness (By similarity). Component of the TAS2R14-GNAI1 complex, consisting of TAS2R14, GNAI1, GNB1 and GNG2 (By similarity). Component of the TAS2R14-GNAT3 complex, consisting of TAS2R14, GNAT3, GNB1 and GNG2 (By similarity). Component of the TAS2R14-GNAS2 complex, consisting of TAS2R14, GNAS2, GNB1 and GNG2 (By similarity). Component of the ADORA1-GNAI2 complex, consisting of ADORA1, GNAI2, GNB1 and GNG2 (By similarity). Component of the CNR1-GNAI2 complex, consisting of CNR1, GNAI2, GNB1 and GNG2 (By similarity). Component of the FPR2-GNAI2 complex, consisting of FPR2, GNAI2, GNB1 and GNG2 (By similarity). Interacts with MC1R, the interaction is important for coupling of MC1R to G protein (By similarity). Component of a complex composed of FPR1 or FPR2 receptor and G(i) protein subunits GNAI1, GNB1 and GNG2; this complex is involved in innate recognition of N-formyl-methionyl peptides derived from invading microbes and host mitochondria as pathogen- and damage-associated molecular patterns (PAMPs and DAMPs).INTERACTION Phosphorylation at His-266 by NDKB contributes to G protein activation by increasing the high energetic phosphate transfer onto GDP.SIMILARITY Belongs to the WD repeat G protein beta family.
descriptionrecommendedName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 alternativeName: Transducin beta chain 1
geneNameGNB1
identifierP62871
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Phosphoprotein
Reference proteome
Repeat
Transducer
WD repeat
modified[InstanceEdit:84067] Schmidt, EE, 2003-12-18 04:29:09
[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9698430] Weiser, JD
[InstanceEdit:9829221] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
[InstanceEdit:9983091] Weiser, Joel, 2026-02-20
nameGNB1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierGBB1_BOVIN
P04697
P04901
Q3MHF1
sequenceLength340
species[Species:48898] Bos taurus
(referenceEntity)[EntityWithAccessionedSequence:55377] Guanine nucleotide-binding protein G(I)/G(S)/G(T) beta subunit 1 [Bos taurus]
[EntityWithAccessionedSequence:2530483] Gnb1 [photoreceptor disc membrane] [Bos taurus]
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No pathways have been reviewed or authored by UniProt:P62871 GNB1 (55378)