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Details on Person UniProt:P04695 GNAT1

Class:IdReferenceGeneProduct:74040
_chainChangeLoginitiator methionine:1 added on Sat February 7 2015;chain:2-350 added on Sat February 7 2015;initiator methionine:1 for 74040 removed on Fri Nov 03 2023;initiator methionine: for 74040 added on Fri Nov 03 2023;initiator methionine: for 74040 removed on Fri Aug 15 2025;initiator methionine:1 for 74040 added on Fri Aug 15 2025
_displayNameUniProt:P04695 GNAT1
_timestamp2025-08-15 21:30:19
chaininitiator methionine:1
chain:2-350
checksum36F0B4630EFBD7DF
commentFUNCTION Functions as a signal transducer for the rod photoreceptor RHO (PubMed:21285355, PubMed:23303210, PubMed:28655769, PubMed:8259210). Required for normal RHO-mediated light perception by the retina (By similarity). Guanine nucleotide-binding proteins (G proteins) function as transducers downstream of G protein-coupled receptors (GPCRs), such as the photoreceptor RHO. The alpha chain contains the guanine nucleotide binding site and alternates between an active, GTP-bound state and an inactive, GDP-bound state (PubMed:21285355, PubMed:28655769, PubMed:7969474, PubMed:8208289, PubMed:8259210). Activated RHO promotes GDP release and GTP binding (PubMed:21285355, PubMed:28655769). Signaling is mediated via downstream effector proteins, such as cGMP-phosphodiesterase (PubMed:21285355).SUBUNIT Heterotrimeric G proteins are composed of 3 subunits alpha, beta and gamma (PubMed:21285355, PubMed:23303210, PubMed:28655769). The alpha chain contains the guanine nucleotide binding site (PubMed:21285355, PubMed:7969474, PubMed:8208289, PubMed:8259210). Interacts with RHO (PubMed:18818650, PubMed:21285355, PubMed:21389983, PubMed:21389988, PubMed:23303210, PubMed:23579341, PubMed:28655769, PubMed:9539726). Interacts with RGS9 and PDE6G (PubMed:11234020). Interacts (when myristoylated) with UNC119; interaction is required for localization in sensory neurons (By similarity).INTERACTION Localizes mainly in the outer segment in the dark-adapted state, whereas is translocated to the inner part of the photoreceptors in the light-adapted state. During dark-adapted conditions, in the presence of UNC119 mislocalizes from the outer segment to the inner part of rod photoreceptors which leads to decreased photoreceptor damage caused by light.TISSUE SPECIFICITY Rod.
descriptionrecommendedName: Guanine nucleotide-binding protein G(t) subunit alpha-1 alternativeName: Transducin alpha-1 chain
geneNameGNAT1
identifierP04695
isSequenceChangedFALSE
keyword3D-structure
Cell projection
Direct protein sequencing
GTP-binding
Lipoprotein
Magnesium
Membrane
Metal-binding
Myristate
Nucleotide-binding
Phosphoprotein
Reference proteome
Sensory transduction
Transducer
Vision
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:3445779] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9607352] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9645038] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9862192] Weiser, Joel, 2024-02-26
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameGNAT1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierGNAT1_BOVIN
sequenceLength350
species[Species:48898] Bos taurus
(referenceEntity)[EntityWithAccessionedSequence:74041] G protein alpha subunit [Bos taurus]
[EntityWithAccessionedSequence:2530518] Gnat1 [photoreceptor disc membrane] [Bos taurus]
[EntityWithAccessionedSequence:2534068] N-(C12:0)-GNAT1 [photoreceptor disc membrane] [Bos taurus]
[EntityWithAccessionedSequence:2534079] N-(C14:1)-GNAT1 [photoreceptor disc membrane] [Bos taurus]
[EntityWithAccessionedSequence:2534086] N-(C14:2)-GNAT1 [photoreceptor disc membrane] [Bos taurus]
(referenceSequence)[GroupModifiedResidue:2534010] N-(cis-delta 5)-tetradecaenoylglycine (C14:1 group) at 2
[GroupModifiedResidue:2534016] modified glycine residue (lauroyl group) at 2
[GroupModifiedResidue:2534071] N-(cis,cis-delta 5,delta 8)-tetradecadienoylglycine (C14:2 group) at 2
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No pathways have been reviewed or authored by UniProt:P04695 GNAT1 (74040)