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Details on Person UniProt:Q63651 Grk1

Class:IdReferenceGeneProduct:74522
_chainChangeLogchain:1-561 added on Fri February 6 2015;propeptide:562-564 added on Fri February 6 2015
_displayNameUniProt:Q63651 Grk1
_timestamp2025-02-21 19:48:27
chainchain:1-561
propeptide:562-564
checksum17E05784E6D1ED00
commentFUNCTION Retina-specific kinase involved in the signal turnoff via phosphorylation of rhodopsin (RHO), the G protein- coupled receptor that initiates the phototransduction cascade (By similarity). This rapid desensitization is essential for scotopic vision and permits rapid adaptation to changes in illumination (By similarity). May play a role in the maintenance of the outer nuclear layer in the retina (By similarity).CATALYTIC ACTIVITY L-threonyl-[rhodopsin] + ATP = O-phospho-L-threonyl-[rhodopsin] + ADP + H(+)CATALYTIC ACTIVITY L-seryl-[rhodopsin] + ATP = O-phospho-L-seryl-[rhodopsin] + ADP + H(+)ACTIVITY REGULATION Inhibited by RCVRN, which prevents the interaction between GRK1 and RHO (By similarity). Inhibition is calcium-dependent (By similarity).SUBUNIT Interacts (via N-terminus) with RCVRN (via C-terminus); the interaction is Ca(2+)-dependent (By similarity). Interacts (when prenylated) with PDE6D; this promotes release from membranes (By similarity). May form a complex composed of RHO, GRK1 and RCVRN in a Ca(2+)-dependent manner; RCVRN prevents the interaction between GRK1 and RHO (By similarity).SUBCELLULAR LOCATION Subcellular location is not affected by light or dark conditions.TISSUE SPECIFICITY Detected in retina (at protein level) (PubMed:21504899). Retina-specific. Expressed in rod and cone photoreceptor cells.PTM Autophosphorylated, Ser-21 is a minor site of autophosphorylation compared to Ser-491 and Thr-492 (By similarity). Phosphorylation at Ser-21 is regulated by light and activated by cAMP.PTM Farnesylation is required for full activity.SIMILARITY Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. GPRK subfamily.
descriptionrecommendedName: Rhodopsin kinase GRK1 shortName: RK ecNumber evidence="3"2.7.11.14 alternativeName: fullName evidence="12"G protein-coupled receptor kinase 1
geneNameGrk1
Rhok
identifierQ63651
isSequenceChangedFALSE
keywordATP-binding
Cell projection
Direct protein sequencing
Kinase
Lipoprotein
Membrane
Methylation
Nucleotide-binding
Phosphoprotein
Prenylation
Reference proteome
Sensory transduction
Serine/threonine-protein kinase
Transferase
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:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:8944791] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9666080] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9706439] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
nameGrk1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierGRK1_RAT
sequenceLength564
species[Species:48895] Rattus norvegicus
(referenceEntity)[EntityWithAccessionedSequence:74523] Rhodopsin kinase [cytosol] [Rattus norvegicus]
[EntityWithAccessionedSequence:74525] farnesylated rhodopsin kinase [Rattus norvegicus]
(referenceSequence)[ModifiedResidue:74524] farnesylated residue at unknown position
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No pathways have been reviewed or authored by UniProt:Q63651 Grk1 (74522)