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CDCP1
Identifiers
Aliases	CDCP1, CD318, SIMA135, TRASK, CUB domain containing protein 1
External IDs	OMIM: 611735; MGI: 2442010; HomoloGene: 11276; GeneCards: CDCP1; OMA:CDCP1 - orthologs
Gene location (Human)
Chr.	Chromosome 3 (human)
End	45,146,422 bp
Gene location (Mouse)
Chr.	Chromosome 9 (mouse)
End	123,045,103 bp
RNA expression pattern
	Top expressed in
	gingival epithelium; ; islet of Langerhans; ; mucosa of esophagus; ; mucosa of transverse colon; ; rectum; ; cartilage tissue; ; hair follicle; ; pancreatic ductal cell; ; duodenum; ; palpebral conjunctiva;
	Top expressed in
	Paneth cell; ; conjunctival fornix; ; corneal stroma; ; lactiferous gland; ; Ileal epithelium; ; gastric mucosa; ; mucous cell of stomach; ; epithelium of stomach; ; jejunum; ; duodenum;
	More reference expression data
	More reference expression data
Orthologs
	64866
	109332
	ENSG00000163814
	ENSMUSG00000035498
	Q9H5V8
	Q5U462
	NM_022842; NM_178181
	NM_133974
	NP_073753; NP_835488
	NP_598735
	Wikidata
View/Edit Human	View/Edit Mouse

CUB domain-containing protein 1 (CDCP1) is a protein that in humans is encoded by the CDCP1 gene.^[5]^[6] CDCP1 has also been designated as CD318 (cluster of differentiation 318) and Trask (Transmembrane and associated with src kinases). Alternatively spliced transcript variants encoding distinct isoforms have been reported.^[6]

Function

CDCP1 is a 140 kD transmembrane glycoprotein with a large extracellular domain (ECD) containing two CUB domains, and a smaller intracellular domain (ICD). CDCP1 is cleaved by serine proteases at the extracellular domain next to Arg368 to generate a truncated molecule of 80 kDa size.^[7] Different cell lines express different amounts of p140 and p80, depending on the activity of endogenous serine proteases.

The intracellular domain of CDCP1 contains five tyrosine residues - Y707, Y734, Y743, Y762 and Y806. The tyrosine phosphorylation of CDCP1 in cultured cells occurs when cells are induced to detach by trypsin or EDTA, or seen spontaneously during mitotic detachment.

Clinical significance

The phosphorylation of CDCP1 is seen in many cancers, including some pre-invasive cancers as well as in invasive tumors and in tumor metastases.^[8]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000163814 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000035498 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Scherl-Mostageer M, Sommergruber W, Abseher R, Hauptmann R, Ambros P, Schweifer N (July 2001). "Identification of a novel gene, CDCP1, overexpressed in human colorectal cancer". Oncogene. 20 (32): 4402–8. doi:10.1038/sj.onc.1204566. PMID 11466621. S2CID 19987585.
^ ^a ^b "Entrez Gene: CDCP1 CUB domain containing protein 1".
^ Bhatt AS, Erdjument-Bromage H, Tempst P, Craik CS, Moasser MM (2005). "Adhesion signaling by a novel mitotic substrate of src kinases". Oncogene. 24 (34): 5333–43. doi:10.1038/sj.onc.1208582. PMC 3023961. PMID 16007225.
^ Wortmann A, He Y, Deryugina EI, Quigley JP, Hooper JD (July 2009). "The cell surface glycoprotein CDCP1 in cancer--insights, opportunities, and challenges". IUBMB Life. 61 (7): 723–30. doi:10.1002/iub.198. PMID 19514048. S2CID 9630579.

Xia Y, Gil SG, Carter WG (February 1996). "Anchorage mediated by integrin alpha6beta4 to laminin 5 (epiligrin) regulates tyrosine phosphorylation of a membrane-associated 80-kD protein". The Journal of Cell Biology. 132 (4): 727–40. doi:10.1083/jcb.132.4.727. PMC 2199869. PMID 8647901.
Hooper JD, Zijlstra A, Aimes RT, Liang H, Claassen GF, Tarin D, Testa JE, Quigley JP (March 2003). "Subtractive immunization using highly metastatic human tumor cells identifies SIMA135/CDCP1, a 135 kDa cell surface phosphorylated glycoprotein antigen". Oncogene. 22 (12): 1783–94. doi:10.1038/sj.onc.1206220. PMID 12660814. S2CID 2608191.
Conze T, Lammers R, Kuci S, Scherl-Mostageer M, Schweifer N, Kanz L, Buhring HJ (May 2003). "CDCP1 is a novel marker for hematopoietic stem cells". Annals of the New York Academy of Sciences. 996 (1): 222–6. Bibcode:2003NYASA.996..222C. doi:10.1111/j.1749-6632.2003.tb03249.x. PMID 12799299. S2CID 12794175.
Clark HF, Gurney AL, Abaya E, Baker K, Baldwin D, Brush J, Chen J, Chow B, Chui C, Crowley C, Currell B, Deuel B, Dowd P, Eaton D, Foster J, Grimaldi C, Gu Q, Hass PE, Heldens S, Huang A, Kim HS, Klimowski L, Jin Y, Johnson S, Lee J, Lewis L, Liao D, Mark M, Robbie E, Sanchez C, Schoenfeld J, Seshagiri S, Simmons L, Singh J, Smith V, Stinson J, Vagts A, Vandlen R, Watanabe C, Wieand D, Woods K, Xie MH, Yansura D, Yi S, Yu G, Yuan J, Zhang M, Zhang Z, Goddard A, Wood WI, Godowski P, Gray A (October 2003). "The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment". Genome Research. 13 (10): 2265–70. doi:10.1101/gr.1293003. PMC 403697. PMID 12975309.
Brown TA, Yang TM, Zaitsevskaia T, Xia Y, Dunn CA, Sigle RO, Knudsen B, Carter WG (April 2004). "Adhesion or plasmin regulates tyrosine phosphorylation of a novel membrane glycoprotein p80/gp140/CUB domain-containing protein 1 in epithelia". The Journal of Biological Chemistry. 279 (15): 14772–83. doi:10.1074/jbc.M309678200. PMID 14739293.
Bühring HJ, Kuçi S, Conze T, Rathke G, Bartolović K, Grünebach F, Scherl-Mostageer M, Brümmendorf TH, Schweifer N, Lammers R (2005). "CDCP1 identifies a broad spectrum of normal and malignant stem/progenitor cell subsets of hematopoietic and nonhematopoietic origin". Stem Cells. 22 (3): 334–43. doi:10.1634/stemcells.22-3-334. PMID 15153610. S2CID 11997172.
Benes CH, Wu N, Elia AE, Dharia T, Cantley LC, Soltoff SP (April 2005). "The C2 domain of PKCdelta is a phosphotyrosine binding domain". Cell. 121 (2): 271–80. doi:10.1016/j.cell.2005.02.019. PMID 15851033. S2CID 1498824.
Bhatt AS, Erdjument-Bromage H, Tempst P, Craik CS, Moasser MM (August 2005). "Adhesion signaling by a novel mitotic substrate of src kinases". Oncogene. 24 (34): 5333–43. doi:10.1038/sj.onc.1208582. PMC 3023961. PMID 16007225.
André M, Le Caer JP, Greco C, Planchon S, El Nemer W, Boucheix C, Rubinstein E, Chamot-Rooke J, Le Naour F (March 2006). "Proteomic analysis of the tetraspanin web using LC-ESI-MS/MS and MALDI-FTICR-MS". Proteomics. 6 (5): 1437–49. doi:10.1002/pmic.200500180. PMID 16404722. S2CID 46542257.
Kimura H, Morii E, Ikeda JI, Ezoe S, Xu JX, Nakamichi N, Tomita Y, Shibayama H, Kanakura Y, Aozasa K (September 2006). "Role of DNA methylation for expression of novel stem cell marker CDCP1 in hematopoietic cells". Leukemia. 20 (9): 1551–6. doi:10.1038/sj.leu.2404312. PMID 16926850. S2CID 6809573.
Perry SE, Robinson P, Melcher A, Quirke P, Bühring HJ, Cook GP, Blair GE (March 2007). "Expression of the CUB domain containing protein 1 (CDCP1) gene in colorectal tumour cells". FEBS Letters. 581 (6): 1137–42. doi:10.1016/j.febslet.2007.02.025. PMID 17335815. S2CID 30701692.
Uekita T, Jia L, Narisawa-Saito M, Yokota J, Kiyono T, Sakai R (November 2007). "CUB domain-containing protein 1 is a novel regulator of anoikis resistance in lung adenocarcinoma". Molecular and Cellular Biology. 27 (21): 7649–60. doi:10.1128/MCB.01246-07. PMC 2169043. PMID 17785447.