Background: The ErbB family is composed of four plasma membrane-bound receptor tyrosine kinases. Amplification or over-expression of the ERBB2 gene occurs in approximately 30% of breast cancers. HER2 is encoded by ERBB2, a known proto-oncogene located at the long arm of human chromosome 17(17q21-q22). HER2 proteins have been shown to form clusters in cell membranes that may play a role in tumorigenesis. Mutations of ErbB2 protein, including V777A, have been indicated in human cancers.
Immunogen: A synthetic peptide surround the 777A codon of ErbB2 protein.
Constituents: PBS (without Mg2+ and Ca2+), pH 7.4, 150 mM NaCl, 50% glycerol
Species Reactivity: Recognizes V777A mutant but not wild type ErbB2 protein, of vertebrates.
Storage Conditions: Store at -20°C. Avoid freeze / thaw cycles.
Immunofluorescence:
Immunofluorescence of cells expressing ErbB2 proteins with anti-ErbB2 (V777A) antibody. HEK293T cells were transfected with pCDNA3-GFP- ErbB2 WT plasmid (left column) or pCDNA3-GFP-ErbB2 (V777A) plasmid (right column), then fixed and stained with anti-ErbB2 (V777A) monoclonal antibody (Cat. #26080).