Cell Signaling Technology

Product Pathways - Tyrosine Kinase / Adaptors

Fes Antibody #2736

Applications Reactivity Sensitivity MW (kDa) Source
W IP H Endogenous 93 Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

Fes Antibody detects endogenous levels of Fes proteins. This antibody does not cross-react with other proteins.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Thr421 of human Fes. Antibodies are purified by protein A and peptide affinity chromatography.  

Western Blotting

Western Blotting

Western blot analysis of HEL and UT-7 cell lysates, using Fes Antibody.

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of Jurkat cells, using Fes Antibody (blue) compared to a nonspecific negative control antibody (red).

Background

Fes/Fps and Fer are the only two members of a unique family of cytoplasmic protein tyrosine kinases (1,2). Fps and Fer contain a central Src homology-2 (SH2) domain and a carboxy-terminal tyrosine kinase catalytic domain. They are structurally distinguished from other members of cytoplasmic protein tyrosine kinase subfamilies by the presence of amino-terminal Fer/CIP4 homology and coiled-coil domains (3). Fes/Fps was originally identified as an oncogene from avian (Fps) and feline (Fes) retroviruses. Human c-Fes has been implicated in myeloid, vascular endothelial and neuronal cell differentiation. Mutations may activate the Fps kinase and thereby contribute to cancer (4). However, recent data strongly suggests that the c-Fes protein-tyrosine kinase is a tumor suppressor rather than a dominant oncogene in colorectal cancer (5).

  1. Smithgall, T.E. et al. (1998) Crit. Rev. Oncog. 9, 43-62.
  2. Greer, P. (2002) Nat. Rev. Mol. Cell Biol. 3, 278-289.
  3. Sangrar, W. et al. (2005) Cancer Res. 65, 3518-3522.
  4. Ley, T.J. et al. (2003) Proc. Natl. Acad. Sci. USA 100, 14275-14280.
  5. Delfino, F.J. et al. (2006) J. Biol. Chem. 281, 8829-8835.

Application References

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Companion Products


For Research Use Only. Not For Use In Diagnostic Procedures.

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