RYK
Tyrosine-protein kinase RYK
Also known as: D3S3195, JTK5, JTK5A, RYK_HUMAN, RYK1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P34925
- Gene
- RYK
- Ensembl
- ENSG00000163785
- Chromosome
- 3
- Canonical length
- 607 aa
- Protein class
- Enzymes, Predicted membrane proteins
- Subcellular location
- Golgi apparatus,Cytosol
OverviewNCBI Gene
The protein encoded by this gene is an atypical member of the family of growth factor receptor protein tyrosine kinases, differing from other members at a number of conserved residues in the activation and nucleotide binding domains. This gene product belongs to a subfamily whose members do not appear to be regulated by phosphorylation in the activation segment. It has been suggested that mediation of biological activity by recruitment of a signaling-competent auxiliary protein may occur through an as yet uncharacterized mechanism. The encoded protein has a leucine-rich extracellular domain with a WIF-type Wnt binding region, a single transmembrane domain, and an intracellular tyrosine kinase domain. This protein is involved in stimulating Wnt signaling pathways such as the regulation of axon pathfinding. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Feb 2012]
Canonical amino-acid sequenceUniProt
607 residues, UniProt reviewed canonical sequence.
>P34925|RYK
1 MRGAARLGRP GRSCLPGARG LRAPPPPPLL LLLALLPLLP APGAAAAPAP RPPELQSASA
61 GPSVSLYLSE DEVRRLIGLD AELYYVRNDL ISHYALSFSL LVPSETNFLH FTWHAKSKVE
121 YKLGFQVDNV LAMDMPQVNI SVQGEVPRTL SVFRVELSCT GKVDSEVMIL MQLNLTVNSS
181 KNFTVLNFKR RKMCYKKLEE VKTSALDKNT SRTIYDPVHA APTTSTRVFY ISVGVCCAVI
241 FLVAIILAVL HLHSMKRIEL DDSISASSSS QGLSQPSTQT TQYLRADTPN NATPITSYPT
301 LRIEKNDLRS VTLLEAKGKV KDIAISRERI TLKDVLQEGT FGRIFHGILI DEKDPNKEKQ
361 AFVKTVKDQA SEIQVTMMLT ESCKLRGLHH RNLLPITHVC IEEGEKPMVI LPYMNWGNLK
421 LFLRQCKLVE ANNPQAISQQ DLVHMAIQIA CGMSYLARRE VIHKDLAARN CVIDDTLQVK
481 ITDNALSRDL FPMDYHCLGD NENRPVRWMA LESLVNNEFS SASDVWAFGV TLWELMTLGQ
541 TPYVDIDPFE MAAYLKDGYR IAQPINCPDE LFAVMACCWA LDPEERPKFQ QLVQCLTEFH
601 AALGAYVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against RYK 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.37
- Highest tissue expression
- 79 nTPM
Expression across tissuesHPA
Tissue
- ovary: 79 nTPM
- testis: 44 nTPM
- endometrium: 43 nTPM
- seminal vesicle: 41 nTPM
- breast: 40 nTPM
- thyroid gland: 38 nTPM
Single-cell type
- breast lactating cells: 204 nCPM
- choroid plexus epithelial cells: 201 nCPM
- pituitary stem cells: 178 nCPM
- sertoli cells: 176 nCPM
- thyrotrophs: 154 nCPM
- gonadotrophs: 146 nCPM
Immune cell
- basophil: 4.7 nTPM
- memory CD4 T-cell: 2 nTPM
- naive CD4 T-cell: 1.9 nTPM
- eosinophil: 1.6 nTPM
- naive CD8 T-cell: 1.6 nTPM
- NK-cell: 1.6 nTPM
Brain region
- choroid plexus: 27 nTPM
- thalamus: 20 nTPM
- spinal cord: 19 nTPM
- white matter: 19 nTPM
- medulla oblongata: 19 nTPM
- basal ganglia: 18 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)
- 0.29
- gnomAD pLI
- 0.99
- gnomAD missense Z
- 1.81
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 10% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- axon extension involved in axon guidance
- axon guidance
- axonogenesis
- canonical Wnt signaling pathway
- cell surface receptor protein tyrosine kinase signaling pathway
- chemorepulsion of dopaminergic neuron axon
- commissural neuron axon guidance
- corpus callosum development
- midbrain dopaminergic neuron differentiation
- negative regulation of axon extension involved in axon guidance
- neurogenesis
- neuron differentiation
- neuron projection development
- non-canonical Wnt signaling pathway
- positive regulation of cell proliferation in midbrain
- positive regulation of MAPK cascade
- positive regulation of neuron projection development
- positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
- signal transduction
- skeletal system morphogenesis
- synapse assembly
- Wnt signaling pathway, planar cell polarity pathway
Molecular functions
- ATP binding
- coreceptor activity
- frizzled binding
- protein kinase activity
- transmembrane signaling receptor activity
- Wnt receptor activity
- Wnt-protein binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of RYK 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 RYK as an antibody target. Whether an autoantibody or antibody against RYK could matter depends on whether native RYK is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
RYK is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label RYK as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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