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For the older type of computer memory, see DDR SDRAM.
Discoidin domain receptor tyrosine kinase 1
Available structures
PDB Ortholog search: PDBe, RCSB
Symbols DDR1 ; CAK; CD167; DDR; EDDR1; HGK2; MCK10; NEP; NTRK4; PTK3; PTK3A; RTK6; TRKE
External IDs OMIM600408 MGI99216 HomoloGene68212 ChEMBL: 5319 GeneCards: DDR1 Gene
EC number
RNA expression pattern
PBB GE DDR1 1007 s at tn.png
PBB GE DDR1 207169 x at tn.png
PBB GE DDR1 208779 x at tn.png
More reference expression data
Species Human Mouse
Entrez 780 12305
Ensembl ENSG00000137332 ENSMUSG00000003534
UniProt Q08345 Q03146
RefSeq (mRNA) NM_001202521 NM_001198831
RefSeq (protein) NP_001189450 NP_001185760
Location (UCSC) Chr 6:
30.88 – 30.9 Mb
Chr 17:
35.68 – 35.7 Mb
PubMed search [1] [2]

Discoidin domain receptor family, member 1, also known as DDR1 or CD167a (cluster of differentiation 167a), is a human gene.[1]


Receptor tyrosine kinases (RTKs) play a key role in the communication of cells with their microenvironment. These molecules are involved in the regulation of cell growth, differentiation and metabolism. The protein encoded by this gene is a RTK that is widely expressed in normal and transformed epithelial cells and is activated by various types of collagen. This protein belongs to a subfamily of tyrosine kinase receptors with a homology region to the Dictyostelium discoideum protein discoidin I in their extracellular domain. Its autophosphorylation is achieved by all collagens so far tested (type I to type VI). A closely related family member is the DDR2 protein.[2] In situ studies and Northern-blot analysis showed that expression of this encoded protein is restricted to epithelial cells, particularly in the kidney, lung, gastrointestinal tract, and brain. In addition, this protein is significantly over-expressed in several human tumors from breast, ovarian, esophageal, and pediatric brain. This gene is located on chromosome 6p21.3 in proximity to several HLA class I genes. Alternative splicing of this gene results in multiple transcript variants.[1]


  1. ^ a b "Entrez Gene: DDR1 discoidin domain receptor family, member 1". 
  2. ^ Fu HL, Valiathan RR, Arkwright R, Sohail A, Mihai C, Kumarasiri M, Mahasenan KV, Mobashery S, Huang P, Agarwal G, Fridman R (Mar 2013). "Discoidin domain receptors: unique receptor tyrosine kinases in collagen-mediated signaling". The Journal of Biological Chemistry 288 (11): 7430–7. doi:10.1074/jbc.R112.444158. PMC 3597784. PMID 23335507. 

Further reading[edit]

  • Edelhoff S, Sweetser DA, Disteche CM (Jan 1995). "Mapping of the NEP receptor tyrosine kinase gene to human chromosome 6p21.3 and mouse chromosome 17C". Genomics 25 (1): 309–11. doi:10.1016/0888-7543(95)80144-B. PMID 7774938. 
  • Shelling AN, Butler R, Jones T, Laval S, Boyle JM, Ganesan TS (Jan 1995). "Localization of an epithelial-specific receptor kinase (EDDR1) to chromosome 6q16". Genomics 25 (2): 584–7. doi:10.1016/0888-7543(95)80065-T. PMID 7789998. 
  • Weiner TM, Liu ET, Craven RJ, Cance WG (Jan 1994). "Expression of growth factor receptors, the focal adhesion kinase, and other tyrosine kinases in human soft tissue tumors". Annals of Surgical Oncology 1 (1): 18–27. doi:10.1007/BF02303537. PMID 7834423. 
  • Laval S, Butler R, Shelling AN, Hanby AM, Poulsom R, Ganesan TS (Nov 1994). "Isolation and characterization of an epithelial-specific receptor tyrosine kinase from an ovarian cancer cell line". Cell Growth & Differentiation 5 (11): 1173–83. PMID 7848919. 
  • Kato JY, Matsuoka M, Strom DK, Sherr CJ (Apr 1994). "Regulation of cyclin D-dependent kinase 4 (cdk4) by cdk4-activating kinase". Molecular and Cellular Biology 14 (4): 2713–21. doi:10.1128/MCB.14.4.2713. PMC 358637. PMID 8139570. 
  • Di Marco E, Cutuli N, Guerra L, Cancedda R, De Luca M (Nov 1993). "Molecular cloning of trkE, a novel trk-related putative tyrosine kinase receptor isolated from normal human keratinocytes and widely expressed by normal human tissues". The Journal of Biological Chemistry 268 (32): 24290–5. PMID 8226977. 
  • Perez JL, Shen X, Finkernagel S, Sciorra L, Jenkins NA, Gilbert DJ, Copeland NG, Wong TW (Jan 1994). "Identification and chromosomal mapping of a receptor tyrosine kinase with a putative phospholipid binding sequence in its ectodomain". Oncogene 9 (1): 211–9. PMID 8302582. 
  • Johnson JD, Edman JC, Rutter WJ (Jun 1993). "A receptor tyrosine kinase found in breast carcinoma cells has an extracellular discoidin I-like domain". Proceedings of the National Academy of Sciences of the United States of America 90 (12): 5677–81. doi:10.1073/pnas.90.12.5677. PMC 46784. PMID 8390675. 
  • Perez JL, Jing SQ, Wong TW (Apr 1996). "Identification of two isoforms of the Cak receptor kinase that are coexpressed in breast tumor cell lines". Oncogene 12 (7): 1469–77. PMID 8622863. 
  • Valent A, Meddeb M, Danglot G, Duverger A, Nguyen VC, Bernheim A (Jul 1996). "Assignment of the NTRK4 (trkE) gene to chromosome 6p21". Human Genetics 98 (1): 12–5. doi:10.1007/s004390050152. PMID 8682498. 
  • Playford MP, Butler RJ, Wang XC, Katso RM, Cooke IE, Ganesan TS (Jul 1996). "The genomic structure of discoidin receptor tyrosine kinase". Genome Research 6 (7): 620–7. doi:10.1101/gr.6.7.620. PMID 8796349. 
  • Sakuma S, Saya H, Tada M, Nakao M, Fujiwara T, Roth JA, Sawamura Y, Shinohe Y, Abe H (Dec 1996). "Receptor protein tyrosine kinase DDR is up-regulated by p53 protein". FEBS Letters 398 (2-3): 165–9. doi:10.1016/S0014-5793(96)01234-3. PMID 8977099. 
  • Nemoto T, Ohashi K, Akashi T, Johnson JD, Hirokawa K (1998). "Overexpression of protein tyrosine kinases in human esophageal cancer". Pathobiology 65 (4): 195–203. doi:10.1159/000164123. PMID 9396043. 
  • Tanaka K, Nagayama Y, Nakano T, Takamura N, Namba H, Fukada S, Kuma K, Yamashita S, Niwa M (Mar 1998). "Expression profile of receptor-type protein tyrosine kinase genes in the human thyroid". Endocrinology 139 (3): 852–8. doi:10.1210/en.139.3.852. PMID 9492013. 
  • Vogel W, Gish GD, Alves F, Pawson T (Dec 1997). "The discoidin domain receptor tyrosine kinases are activated by collagen". Molecular Cell 1 (1): 13–23. doi:10.1016/S1097-2765(00)80003-9. PMID 9659899. 
  • Shrivastava A, Radziejewski C, Campbell E, Kovac L, McGlynn M, Ryan TE, Davis S, Goldfarb MP, Glass DJ, Lemke G, Yancopoulos GD (Dec 1997). "An orphan receptor tyrosine kinase family whose members serve as nonintegrin collagen receptors". Molecular Cell 1 (1): 25–34. doi:10.1016/S1097-2765(00)80004-0. PMID 9659900. 
  • Vogel W, Brakebusch C, Fässler R, Alves F, Ruggiero F, Pawson T (Feb 2000). "Discoidin domain receptor 1 is activated independently of beta(1) integrin". The Journal of Biological Chemistry 275 (8): 5779–84. doi:10.1074/jbc.275.8.5779. PMID 10681566. 
  • Foehr ED, Tatavos A, Tanabe E, Raffioni S, Goetz S, Dimarco E, De Luca M, Bradshaw RA (May 2000). "Discoidin domain receptor 1 (DDR1) signaling in PC12 cells: activation of juxtamembrane domains in PDGFR/DDR/TrkA chimeric receptors". FASEB Journal 14 (7): 973–81. PMID 10783152. 
  • Weiner HL, Huang H, Zagzag D, Boyce H, Lichtenbaum R, Ziff EB (Dec 2000). "Consistent and selective expression of the discoidin domain receptor-1 tyrosine kinase in human brain tumors". Neurosurgery 47 (6): 1400–9. doi:10.1097/00006123-200012000-00028. PMID 11126911. 
  • Mohan RR, Mohan RR, Wilson SE (Jan 2001). "Discoidin domain receptor (DDR) 1 and 2: collagen-activated tyrosine kinase receptors in the cornea". Experimental Eye Research 72 (1): 87–92. doi:10.1006/exer.2000.0932. PMID 11133186. 

This article incorporates text from the United States National Library of Medicine, which is in the public domain.