Seroatlas · Human Serome Atlas

DDR1

Epithelial discoidin domain-containing receptor 1

Also known as: CAK, CD167, DDR1_HUMAN, EDDR1, NEP, NTRK4, PTK3A, RTK6

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q08345
Gene
DDR1
Ensembl
ENSG00000204580
Chromosome
6
Canonical length
913 aa
Protein class
CD markers, Enzymes, Predicted intracellular proteins, Predicted membrane proteins
Subcellular location
Nucleoplasm,Plasma membrane,Cytosol
Secretome location
Intracellular and membrane
Quaternary structure
Homodimer

OverviewNCBI Gene

Receptor tyrosine kinases play a key role in the communication of cells with their microenvironment. These kinases are involved in the regulation of cell growth, differentiation and metabolism. The protein encoded by this gene belongs to a subfamily of tyrosine kinase receptors with homology to Dictyostelium discoideum protein discoidin I in their extracellular domain, and that are activated by various types of collagen. Expression of this protein is restricted to epithelial cells, particularly in the kidney, lung, gastrointestinal tract, and brain. In addition, it has been shown to be significantly overexpressed in several human tumors. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Feb 2011]

Canonical amino-acid sequenceUniProt

913 residues, UniProt reviewed canonical sequence.

>Q08345|DDR1
     1  MGPEALSSLL LLLLVASGDA DMKGHFDPAK CRYALGMQDR TIPDSDISAS SSWSDSTAAR
    61  HSRLESSDGD GAWCPAGSVF PKEEEYLQVD LQRLHLVALV GTQGRHAGGL GKEFSRSYRL
   121  RYSRDGRRWM GWKDRWGQEV ISGNEDPEGV VLKDLGPPMV ARLVRFYPRA DRVMSVCLRV
   181  ELYGCLWRDG LLSYTAPVGQ TMYLSEAVYL NDSTYDGHTV GGLQYGGLGQ LADGVVGLDD
   241  FRKSQELRVW PGYDYVGWSN HSFSSGYVEM EFEFDRLRAF QAMQVHCNNM HTLGARLPGG
   301  VECRFRRGPA MAWEGEPMRH NLGGNLGDPR ARAVSVPLGG RVARFLQCRF LFAGPWLLFS
   361  EISFISDVVN NSSPALGGTF PPAPWWPPGP PPTNFSSLEL EPRGQQPVAK AEGSPTAILI
   421  GCLVAIILLL LLIIALMLWR LHWRRLLSKA ERRVLEEELT VHLSVPGDTI LINNRPGPRE
   481  PPPYQEPRPR GNPPHSAPCV PNGSALLLSN PAYRLLLATY ARPPRGPGPP TPAWAKPTNT
   541  QAYSGDYMEP EKPGAPLLPP PPQNSVPHYA EADIVTLQGV TGGNTYAVPA LPPGAVGDGP
   601  PRVDFPRSRL RFKEKLGEGQ FGEVHLCEVD SPQDLVSLDF PLNVRKGHPL LVAVKILRPD
   661  ATKNARNDFL KEVKIMSRLK DPNIIRLLGV CVQDDPLCMI TDYMENGDLN QFLSAHQLED
   721  KAAEGAPGDG QAAQGPTISY PMLLHVAAQI ASGMRYLATL NFVHRDLATR NCLVGENFTI
   781  KIADFGMSRN LYAGDYYRVQ GRAVLPIRWM AWECILMGKF TTASDVWAFG VTLWEVLMLC
   841  RAQPFGQLTD EQVIENAGEF FRDQGRQVYL SRPPACPQGL YELMLRCWSR ESEQRPPFSQ
   901  LHRFLAEDAL NTV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against DDR1 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)
0.35
Highest tissue expression
168 nTPM

Expression across tissuesHPA

Tissue

  • spinal cord: 168 nTPM
  • esophagus: 144 nTPM
  • midbrain: 143 nTPM
  • salivary gland: 127 nTPM
  • skin: 117 nTPM
  • amygdala: 108 nTPM

Single-cell type

  • ependymal cells: 101 nCPM
  • oligodendrocyte progenitor cells: 98 nCPM
  • astrocytes: 92 nCPM
  • oligodendrocytes: 79 nCPM
  • papillary tip epithelial cells: 52 nCPM
  • renal collecting duct intercalated cells: 52 nCPM

Immune cell

  • naive CD8 T-cell: 0.3 nTPM
  • gdT-cell: 0.2 nTPM
  • naive B-cell: 0.2 nTPM
  • naive CD4 T-cell: 0.2 nTPM
  • total PBMC: 0.2 nTPM
  • MAIT T-cell: 0.1 nTPM

Brain region

  • medulla oblongata: 201 nTPM
  • white matter: 170 nTPM
  • cerebellum: 152 nTPM
  • basal ganglia: 148 nTPM
  • midbrain: 148 nTPM
  • thalamus: 143 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about DDR1.

Disease | ImmuneIEDB

Conditions an epitope on DDR1 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)
0.58
gnomAD pLI
0
gnomAD missense Z
2.22
DepMap mean gene effect
0.08
DepMap dependency class
none

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of DDR1 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 DDR1 as an antibody target. Whether an autoantibody or antibody against DDR1 could matter depends on whether native DDR1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

DDR1 is annotated at the cell surface, where native DDR1 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 DDR1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/DDR1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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