CDCP1

CDCP1
Identifiers
Aliases	CDCP1, CD318, SIMA135, TRASK, CUB domain containing protein 1
External IDs	MGI: 2442010 HomoloGene: 11276 GeneCards: 64866
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	64866	109332
Ensembl	ENSG00000163814	ENSMUSG00000035498
UniProt	Q9H5V8	Q5U462
RefSeq (mRNA)	NM_022842 NM_178181	NM_133974
RefSeq (protein)	NP_073753.3 NP_835488.1	NP_598735.2
Location (UCSC)	Chr 3: 45.08 – 45.15 Mb	Chr 9: 123.17 – 123.22 Mb
PubMed search
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. 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.

Function

CDCP1/Trask is a 140 kD transmembrane glycoprotein with a large extracellular domain (ECD) containing two CUB domains, and a smaller intracellular domain (ICD) containing five tyrosines. The tyrosine phosphorylation of Trask is tightly regulated and reciprocally linked with the state of cell adhesion. 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. The overexpression of CDCP1 leads to the loss of cell adhesion and a detached phenotype. CDCP1 is widely expressed in human epithelial tissues, but its phosphorylation is only seen in mitotically detached or shedding cells, consistent with its role in the negative regulation of cell adhesion.

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.

Further reading

• 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. 
• 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. doi:10.1111/j.1749-6632.2003.tb03249.x. PMID 12799299. 
• 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. 
• 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. 
• 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. 
• 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. 
• 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. 
• 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. 

External links

• CDCP1 protein, human at the US National Library of Medicine Medical Subject Headings (MeSH)

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