GRK6
G protein-coupled receptor kinase 6
Also known as: GPRK6, GRK6_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P43250
- Gene
- GRK6
- Ensembl
- ENSG00000198055
- Chromosome
- 5
- Canonical length
- 576 aa
- Protein class
- Enzymes, Predicted intracellular proteins
- Subcellular location
- Mitochondria
OverviewNCBI Gene
This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor kinase subfamily of the Ser/Thr protein kinase family. The protein phosphorylates the activated forms of G protein-coupled receptors thus initiating their deactivation. Several transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
576 residues, UniProt reviewed canonical sequence.
>P43250|GRK6
1 MELENIVANT VLLKAREGGG GNRKGKSKKW RQMLQFPHIS QCEELRLSLE RDYHSLCERQ
61 PIGRLLFREF CATRPELSRC VAFLDGVAEY EVTPDDKRKA CGRQLTQNFL SHTGPDLIPE
121 VPRQLVTNCT QRLEQGPCKD LFQELTRLTH EYLSVAPFAD YLDSIYFNRF LQWKWLERQP
181 VTKNTFRQYR VLGKGGFGEV CACQVRATGK MYACKKLEKK RIKKRKGEAM ALNEKQILEK
241 VNSRFVVSLA YAYETKDALC LVLTLMNGGD LKFHIYHMGQ AGFPEARAVF YAAEICCGLE
301 DLHRERIVYR DLKPENILLD DHGHIRISDL GLAVHVPEGQ TIKGRVGTVG YMAPEVVKNE
361 RYTFSPDWWA LGCLLYEMIA GQSPFQQRKK KIKREEVERL VKEVPEEYSE RFSPQARSLC
421 SQLLCKDPAE RLGCRGGSAR EVKEHPLFKK LNFKRLGAGM LEPPFKPDPQ AIYCKDVLDI
481 EQFSTVKGVE LEPTDQDFYQ KFATGSVPIP WQNEMVETEC FQELNVFGLD GSVPPDLDWK
541 GQPPAPPKKG LLQRLFSRQD CCGNCSDSEE ELPTRLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against GRK6 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.27
- Highest tissue expression
- 127 nTPM
Expression across tissuesHPA
Tissue
- bone marrow: 127 nTPM
- spleen: 60 nTPM
- lymph node: 58 nTPM
- appendix: 35 nTPM
- thymus: 33 nTPM
- tonsil: 28 nTPM
Single-cell type
- neutrophils: 164 nCPM
- late spermatids: 139 nCPM
- neutrophil progenitors: 113 nCPM
- megakaryocytes: 99 nCPM
- plasma cells: 81 nCPM
- platelets: 79 nCPM
Immune cell
- eosinophil: 75 nTPM
- non-classical monocyte: 52 nTPM
- neutrophil: 51 nTPM
- NK-cell: 40 nTPM
- intermediate monocyte: 37 nTPM
- T-reg: 27 nTPM
Brain region
- white matter: 33 nTPM
- medulla oblongata: 33 nTPM
- basal ganglia: 31 nTPM
- cerebral cortex: 31 nTPM
- hippocampal formation: 29 nTPM
- pons: 29 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.57
- gnomAD pLI
- 0
- gnomAD missense Z
- 2.81
- DepMap mean gene effect
- -0.08
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- G protein-coupled receptor signaling pathway
- regulation of G protein-coupled receptor signaling pathway
- regulation of signal transduction
- Wnt signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of GRK6 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads GRK6 as an antibody target. Whether an autoantibody or antibody against GRK6 could matter depends on whether native GRK6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GRK6 is annotated at the cell surface, where native GRK6 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label GRK6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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