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large number of polyclonal products as
a result of the USDA settlement that was
made public May 19th.

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REACTIVITY SENSITIVITY MW (kDa) SOURCE
140 Rabbit

Product Usage Information

Storage: Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Phospho-CDCP1 (Tyr743) Antibody recognizes endogenous levels of CDCP1 protein only when phosphorylated at Tyr743. This antibody does not cross-react with CDCP1 phosphorylated at Tyr707, Tyr734, or Tyr806, but may cross-react with other phospho-tyrosine containing proteins.


Species predicted to react based on 100% sequence homology: Mouse, Rat

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr743 of human CDCP1 protein. Antibodies are purified by protein A and peptide affinity chromatography.

CUB domain containing protein 1 (CDCP1, SIMA135) is a putative stem cell marker shown in research studies to be highly expressed in some human cancer cells and in both typical and atypical (cancerous) colons (1). Expression of CDCP1 may be epigenetically regulated, as methylation of promoter CpG sequences results in decreased CDCP1 expression (2). The corresponding CDCP1 gene encodes a glycoprotein that acts as a complex, multidomain transmembrane antigen. CDCP1 has three extracellular CUB domains that may be involved in cell adhesion or extracellular matrix interactions (1,3). Src-family kinases may phosphorylate CDCP1 at five tyrosine residues within its cytoplasmic domain to provide a potential binding site for SH2 domain-containing proteins (3). CDCP1 is a putative hematopoietic stem cell marker (4,5).


1.  Scherl-Mostageer, M. et al. (2001) Oncogene 20, 4402-8.

2.  Ikeda, J.I. et al. (2006) J. Pathol. 210, 75-84.

3.  Hooper, J.D. et al. (2003) Oncogene 22, 1783-94.

4.  Conze, T. et al. (2003) Ann. N.Y. Acad. Sci. 996, 222-226.

5.  Bühring, H.J. et al. (2004) Stem Cells 22, 334-343.


Entrez-Gene Id 64866
Swiss-Prot Acc. Q9H5V8


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
Tween is a registered trademark of ICI Americas, Inc.

13093
Phospho-CDCP1 (Tyr743) Antibody