DDR2
Discoidin domain-containing receptor 2
Also known as: DDR2_HUMAN, NTRKR3, TKT, TYRO10
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q16832
- Gene
- DDR2
- Ensembl
- ENSG00000162733
- Chromosome
- 1
- Canonical length
- 855 aa
- Protein class
- Cancer-related genes, CD markers, Disease related genes, Enzymes, FDA approved drug targets, Human disease related genes, Predicted intracellular proteins, Predicted membrane proteins
- Subcellular location
- Plasma membrane,Actin filaments
OverviewNCBI Gene
This gene encodes a member of the discoidin domain receptor subclass of the receptor tyrosine kinase (RTKs) protein family. RTKs play a key role in the communication of cells with their microenvironment. The encoded protein is a collagen-induced receptor that activates signal transduction pathways involved in cell adhesion, proliferation, and extracellular matrix remodeling. This protein is expressed in numerous cell types and may alos be involved in wound repair and regulate tumor growth and invasiveness. Mutations in this gene are the cause of short limb-hand type spondylometaepiphyseal dysplasia. [provided by RefSeq, Aug 2017]
Canonical amino-acid sequenceUniProt
855 residues, UniProt reviewed canonical sequence.
>Q16832|DDR2
1 MILIPRMLLV LFLLLPILSS AKAQVNPAIC RYPLGMSGGQ IPDEDITASS QWSESTAAKY
61 GRLDSEEGDG AWCPEIPVEP DDLKEFLQID LHTLHFITLV GTQGRHAGGH GIEFAPMYKI
121 NYSRDGTRWI SWRNRHGKQV LDGNSNPYDI FLKDLEPPIV ARFVRFIPVT DHSMNVCMRV
181 ELYGCVWLDG LVSYNAPAGQ QFVLPGGSII YLNDSVYDGA VGYSMTEGLG QLTDGVSGLD
241 DFTQTHEYHV WPGYDYVGWR NESATNGYIE IMFEFDRIRN FTTMKVHCNN MFAKGVKIFK
301 EVQCYFRSEA SEWEPNAISF PLVLDDVNPS ARFVTVPLHH RMASAIKCQY HFADTWMMFS
361 EITFQSDAAM YNNSEALPTS PMAPTTYDPM LKVDDSNTRI LIGCLVAIIF ILLAIIVIIL
421 WRQFWQKMLE KASRRMLDDE MTVSLSLPSD SSMFNNNRSS SPSEQGSNST YDRIFPLRPD
481 YQEPSRLIRK LPEFAPGEEE SGCSGVVKPV QPSGPEGVPH YAEADIVNLQ GVTGGNTYSV
541 PAVTMDLLSG KDVAVEEFPR KLLTFKEKLG EGQFGEVHLC EVEGMEKFKD KDFALDVSAN
601 QPVLVAVKML RADANKNARN DFLKEIKIMS RLKDPNIIHL LAVCITDDPL CMITEYMENG
661 DLNQFLSRHE PPNSSSSDVR TVSYTNLKFM ATQIASGMKY LSSLNFVHRD LATRNCLVGK
721 NYTIKIADFG MSRNLYSGDY YRIQGRAVLP IRWMSWESIL LGKFTTASDV WAFGVTLWET
781 FTFCQEQPYS QLSDEQVIEN TGEFFRDQGR QTYLPQPAIC PDSVYKLMLS CWRRDTKNRP
841 SFQEIHLLLL QQGDELocalizationUniProt · AlphaFold · HPA
Whether an antibody against DDR2 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
- 1
- Mean surface accessibility (rSASA)
- 0.33
- Highest tissue expression
- 56 nTPM
Expression across tissuesHPA
Tissue
- adipose tissue: 56 nTPM
- adrenal gland: 54 nTPM
- colon: 48 nTPM
- smooth muscle: 40 nTPM
- choroid plexus: 36 nTPM
- ovary: 35 nTPM
Single-cell type
- adrenal cortex cells: 741 nCPM
- choroid plexus epithelial cells: 586 nCPM
- fibro-adipogenic progenitors: 516 nCPM
- fibroblasts: 366 nCPM
- retinal pigment epithelial cells: 307 nCPM
- adipocytes: 305 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- choroid plexus: 107 nTPM
- medulla oblongata: 78 nTPM
- hypothalamus: 51 nTPM
- white matter: 50 nTPM
- midbrain: 46 nTPM
- thalamus: 43 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about DDR2.
Disease | AllUniProt
Conditions DDR2 is implicated in, by any mechanism.
- Spondyloepimetaphyseal dysplasia, short limb-hand type (SEMD-SL) MIM:271665
- Warburg-Cinotti syndrome (WRCN) MIM:618175
Disease | GeneticClinVar
27 pathogenic / likely-pathogenic of 481 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Spondyloepimetaphyseal dysplasia-short limb-abnormal calcification syndrome
- Warburg-cinotti syndrome
- Ovarian serous cystadenocarcinoma
- Fetal growth restriction
Disease | ImmuneIEDB
Conditions an epitope on DDR2 was assayed in.
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)
- 0.38
- gnomAD pLI
- 0.55
- gnomAD missense Z
- 2.29
- DepMap mean gene effect
- -0.01
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- biomineral tissue development
- cell adhesion
- cell surface receptor protein tyrosine kinase signaling pathway
- cellular response to angiotensin
- cellular response to hypoxia
- cellular response to transforming growth factor beta stimulus
- chondrocyte proliferation
- collagen fibril organization
- collagen-activated tyrosine kinase receptor signaling pathway
- endochondral bone growth
- negative regulation of apoptotic process
- negative regulation of hydrogen peroxide-mediated programmed cell death
- ossification
- peptidyl-tyrosine phosphorylation
- positive regulation of collagen biosynthetic process
- positive regulation of DNA-binding transcription factor activity
- positive regulation of ERK1 and ERK2 cascade
- positive regulation of extracellular matrix disassembly
- positive regulation of fibroblast migration
- positive regulation of fibroblast proliferation
- positive regulation of G1/S transition of mitotic cell cycle
- positive regulation of hepatic stellate cell activation
- positive regulation of hepatic stellate cell proliferation
- positive regulation of neuron projection development
- positive regulation of osteoblast differentiation
- positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction
- positive regulation of protein kinase activity
- positive regulation of vascular associated smooth muscle cell migration
- positive regulation of vascular associated smooth muscle cell proliferation
- positive regulation of wound healing
- protein autophosphorylation
- regulation of bone mineralization
- regulation of extracellular matrix disassembly
- regulation of tissue remodeling
- response to muscle stretch
- signal transduction
Molecular functions
- ATP binding
- collagen binding
- protein tyrosine kinase collagen receptor activity
- transmembrane receptor protein tyrosine kinase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Coagulation factor 5/8, C-terminal domain
- Protein kinase domain
- Serine-threonine/tyrosine-protein kinase, catalytic domain
- Tyrosine-protein kinase, receptor class II, conserved site
- Tyrosine-protein kinase, active site
- Galactose-binding-like domain superfamily
- Protein kinase-like domain superfamily
- Tyrosine-protein kinase, catalytic domain
- Discoidin domain-containing receptor 1/2, DS-like domain
- Receptor Tyrosine Kinase
- F5/8 type C domain
- Protein tyrosine and serine/threonine kinase
- Discoidin domain-containing receptor 1/2, DS-like domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of DDR2 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 DDR2 as an antibody target. Whether an autoantibody or antibody against DDR2 could matter depends on whether native DDR2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
DDR2 is annotated at the cell surface, where native DDR2 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 DDR2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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