Cell Signaling Technology
XP Monoclonal Antibody

Product Pathways - Tyrosine Kinase / Adaptors

Met (D1C2) XP® Rabbit mAb #8198

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP IHC-P IHC-F IF-IC F H Endogenous 140, 170 Rabbit IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IHC-P=Immunohistochemistry (Paraffin)  IHC-F=Immunohistochemistry (Frozen)  IF-IC=Immunofluorescence (Immunocytochemistry)  F=Flow Cytometry
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

Met (D1C2) XP® Rabbit mAb recognizes endogenous levels of total Met protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human Met protein.

Western Blotting

Western Blotting

Western blot analysis of extracts from HT-29 (Met+), SK-BR-3 (Met-), and T-47D (Met-) cells using Met (D1C2) XP® Rabbit mAb (upper) or β-Actin Antibody #4967 (lower).

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human metastatic lung carcinoma using Met (D1C2) XP® Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human hepatocellular carcinoma using Met (D1C2) XP® Rabbit mAb.


IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded human papillary renal cell carcinoma using Met (D1C2) XP® Rabbit mAb.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded cell pellets, MKN-45 (left) and T-47D (right), using Met (D1C2) XP® Rabbit mAb.

IHC-F (frozen)

IHC-F (frozen)

Immunohistochemical analysis of frozen MKN-45 xenograft using Met (D1C2) XP® Rabbit mAb.


Flow Cytometry

Flow Cytometry

Flow cytometric analysis of T-47D cells (blue) and HT-29 cells (green) using Met (D1C2) XP® Rabbit mAb.

IF-IC

IF-IC

Confocal immunofluorescent analysis of HT-29 and T-47D cells using Met (D1C2) XP® Rabbit mAb (green). Actin filaments were labeled with DY-554 phalloidin (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).

Background

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.

Application References

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!

Companion Products


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

Products