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Product Includes Quantity Applications Reactivity MW(kDa) Isotype
Phospho-Met (Tyr1234/1235) (D26) XP® Rabbit mAb 3077 100 µl
Western Blotting Immunoprecipitation Immunohistochemistry Immunofluorescence Flow Cytometry
H M R 145 Rabbit 
Met (D1C2) XP® Rabbit mAb 8198 100 µl
Western Blotting Immunoprecipitation Immunohistochemistry Immunofluorescence Flow Cytometry
H 140, 170 Rabbit IgG

Product Description

PhosphoPlus® Duets from Cell Signaling Technology (CST) provide a means to assess protein activation status. Each Duet contains an activation-state and total protein antibody to your target of interest. These antibodies have been selected from CST's product offering based upon superior performance in specified applications.


Met, a high affinity tyrosine kinase receptor for hepatocyte growth factor (HGF, also known as scatter factor) is a disulfide-linked heterodimer made of 45 kDa α- and 145 kDa β-subunits (1,2). The α-subunit and the amino-terminal region of the β-subunit form the extracellular domain. The remainder of the β-chain spans the plasma membrane and contains a cytoplasmic region with tyrosine kinase activity. Interaction of Met with HGF results in autophosphorylation at multiple tyrosines, which recruit several downstream signaling components, including Gab1, c-Cbl, and PI3 kinase (3). These fundamental events are important for all of the biological functions involving Met kinase activity. The addition of a phosphate at cytoplasmic Tyr1003 is essential for Met protein ubiquitination and degradation (4). Phosphorylation at Tyr1234/1235 in the Met kinase domain is critical for kinase activation. Phosphorylation at Tyr1349 in the Met cytoplasmic domain provides a direct binding site for Gab1 (5). Research studies have shown that altered Met levels and/or tyrosine kinase activities are found in several types of tumors, including renal, colon, and breast. Thus, investigators have concluded that Met is an attractive potential cancer therapeutic and diagnostic target (6,7).


1.  Cooper, C.S. et al. (1984) Nature 311, 29-33.

2.  Bottaro, D.P. et al. (1991) Science 251, 802-4.

3.  Bardelli, A. et al. (1997) Oncogene 15, 3103-11.

4.  Taher, T.E. et al. (2002) J Immunol 169, 3793-800.

5.  Schaeper, U. et al. (2000) J Cell Biol 149, 1419-32.

6.  Eder, J.P. et al. (2009) Clin Cancer Res 15, 2207-14.

7.  Sattler, M. and Salgia, R. (2009) Update Cancer Ther 3, 109-118.


Entrez-Gene Id 4233
Swiss-Prot Acc. P08581


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.
PhosphoPlus® is a trademark of Cell Signaling Technology, Inc.