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Protein

G protein-coupled receptor kinase 6

Gene

Grk6

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at transcript leveli

Functioni

Specifically phosphorylates the activated forms of G protein-coupled receptors. Such receptor phosphorylation initiates beta-arrestin-mediated receptor desensitization, internalization, and signaling events leading to their desensitization. Seems to be involved in the desensitization of D2-like dopamine receptors in striatum and chemokine receptor CXCR4 which is critical for CXCL12-induced cell chemotaxis (By similarity). Phosphorylates rhodopsin (RHO) (in vitro) and a non G-protein-coupled receptor: LRP6 during Wnt signaling (in vitro) (By similarity).By similarity

Catalytic activityi

ATP + [G-protein-coupled receptor] = ADP + [G-protein-coupled receptor] phosphate.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei215ATPPROSITE-ProRule annotation1
Active sitei311Proton acceptorPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi192 – 200ATPPROSITE-ProRule annotation9
Nucleotide bindingi264 – 270ATPPROSITE-ProRule annotation7
Nucleotide bindingi315 – 318ATPPROSITE-ProRule annotation4

GO - Molecular functioni

  • ATP binding Source: UniProtKB-KW
  • G-protein coupled receptor kinase activity Source: RGD

GO - Biological processi

  • desensitization of G-protein coupled receptor protein signaling pathway Source: RGD
  • negative regulation of anion channel activity Source: RGD
  • protein phosphorylation Source: RGD
  • Wnt signaling pathway Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Serine/threonine-protein kinase, Transferase

Keywords - Biological processi

Wnt signaling pathway

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDAi2.7.11.16. 5301.

Names & Taxonomyi

Protein namesi
Recommended name:
G protein-coupled receptor kinase 6 (EC:2.7.11.16)
Alternative name(s):
G protein-coupled receptor kinase GRK6
Gene namesi
Name:Grk6
Synonyms:Gprk6
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi61986. Grk6.

Subcellular locationi

GO - Cellular componenti

  • cytosol Source: RGD
  • plasma membrane Source: RGD
Complete GO annotation...

Keywords - Cellular componenti

Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000859761 – 576G protein-coupled receptor kinase 6Add BLAST576

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei484Phosphoserine; by autocatalysisBy similarity1
Modified residuei485Phosphothreonine; by autocatalysisBy similarity1
Lipidationi561S-palmitoyl cysteineBy similarity1
Lipidationi562S-palmitoyl cysteineBy similarity1
Lipidationi565S-palmitoyl cysteineBy similarity1
Modified residuei566PhosphoserineBy similarity1
Modified residuei568PhosphoserineBy similarity1

Keywords - PTMi

Lipoprotein, Palmitate, Phosphoprotein

Proteomic databases

PaxDbiP97711.
PRIDEiP97711.

PTM databases

iPTMnetiP97711.
PhosphoSitePlusiP97711.

Expressioni

Tissue specificityi

Widely expressed. Detectable in all brain areas examined.1 Publication

Interactioni

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000050134.

Structurei

3D structure databases

ProteinModelPortaliP97711.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini53 – 171RGSPROSITE-ProRule annotationAdd BLAST119
Domaini186 – 448Protein kinasePROSITE-ProRule annotationAdd BLAST263
Domaini449 – 514AGC-kinase C-terminalAdd BLAST66

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni1 – 185N-terminalAdd BLAST185

Sequence similaritiesi

Contains 1 AGC-kinase C-terminal domain.Curated
Contains 1 protein kinase domain.PROSITE-ProRule annotation
Contains 1 RGS domain.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiKOG0986. Eukaryota.
ENOG410YRQZ. LUCA.
HOGENOMiHOG000006742.
HOVERGENiHBG004532.
InParanoidiP97711.
PhylomeDBiP97711.

Family and domain databases

InterProiIPR000961. AGC-kinase_C.
IPR000239. GPCR_kinase.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR016137. RGS.
IPR008271. Ser/Thr_kinase_AS.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
PF00615. RGS. 1 hit.
[Graphical view]
PRINTSiPR00717. GPCRKINASE.
SMARTiSM00315. RGS. 1 hit.
SM00133. S_TK_X. 1 hit.
SM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF48097. SSF48097. 1 hit.
SSF56112. SSF56112. 1 hit.
PROSITEiPS51285. AGC_KINASE_CTER. 1 hit.
PS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
PS50132. RGS. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P97711-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MELENIVANT VLLKAREGGG GNRKGKSKKW RQMLQFPHIS QCEELRLSLE
60 70 80 90 100
RDYHSLCERQ PIGRLLFREF CATRPELTRC TAFLDGVAEY EVTPDEKRKA
110 120 130 140 150
CGCRLMQNFL SHTGPDLIPE VPRQLVSNCA QRLEQGPCKD LFQELTRLTH
160 170 180 190 200
EYLSMAPFAD YLDSIYFNRF LQWKWLERQP VTKNTFRQYR VLGKGGFGEV
210 220 230 240 250
CACQVRATGK MYACKKLEKK RIKKRKGEAM ALNEKQILEK VNSRFVVSLA
260 270 280 290 300
YAYETKDALC LVLTLMNGGD LKFHIYHMGQ AGFPEARAVF YAAEICCGLE
310 320 330 340 350
DLHRERIVYR DLKPENILLD DHGHIRISDL GLTVHVPEGQ TIKGRVGTVG
360 370 380 390 400
YMAPEVVKNE RYTFSPDWWA LGCLLYEMIA GQSPFQQRKK KIKREEVERL
410 420 430 440 450
VKEVAEEYTD RFSPQARSLC SQLPNKDPAE RLGCRGGGAR EVKEHPLFKK
460 470 480 490 500
LNFKRLGAGM LEPPFKPDPQ AIYCKDVLDI EQFSTVKGVD LEPTDQDFYQ
510 520 530 540 550
KFATGSVSIP WQNEMVETEC FQELNVFGLD GSVPPDLDWK GQPTAPPKKG
560 570
LLQRLFSRQD CCGNCSDSEE ELPTRL
Length:576
Mass (Da):65,963
Last modified:May 1, 1997 - v1
Checksum:i0089AC9EE231F5C9
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y09365 mRNA. Translation: CAA70542.1.
UniGeneiRn.10633.

Genome annotation databases

UCSCiRGD:61986. rat.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y09365 mRNA. Translation: CAA70542.1.
UniGeneiRn.10633.

3D structure databases

ProteinModelPortaliP97711.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000050134.

PTM databases

iPTMnetiP97711.
PhosphoSitePlusiP97711.

Proteomic databases

PaxDbiP97711.
PRIDEiP97711.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

UCSCiRGD:61986. rat.

Organism-specific databases

RGDi61986. Grk6.

Phylogenomic databases

eggNOGiKOG0986. Eukaryota.
ENOG410YRQZ. LUCA.
HOGENOMiHOG000006742.
HOVERGENiHBG004532.
InParanoidiP97711.
PhylomeDBiP97711.

Enzyme and pathway databases

BRENDAi2.7.11.16. 5301.

Miscellaneous databases

PROiP97711.

Family and domain databases

InterProiIPR000961. AGC-kinase_C.
IPR000239. GPCR_kinase.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR016137. RGS.
IPR008271. Ser/Thr_kinase_AS.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
PF00615. RGS. 1 hit.
[Graphical view]
PRINTSiPR00717. GPCRKINASE.
SMARTiSM00315. RGS. 1 hit.
SM00133. S_TK_X. 1 hit.
SM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF48097. SSF48097. 1 hit.
SSF56112. SSF56112. 1 hit.
PROSITEiPS51285. AGC_KINASE_CTER. 1 hit.
PS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
PS50132. RGS. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiGRK6_RAT
AccessioniPrimary (citable) accession number: P97711
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: May 1, 1997
Last modified: November 2, 2016
This is version 123 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.