A phospho specific peptide corresponding to residues surrounding tyrosine 1258 of human Her4/ErbB-4 was used as an immunogen. This antibody detects Her4/ErbB-4 phosphorylated on tyrosine 1258.
Buffer
50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
This gene is a member of the Tyr protein kinase family and the epidermal growth factor receptor subfamily. It encodes a single-pass type I membrane protein with multiple cysteine rich domains, a transmembrane domain, a tyrosine kinase domain, a phosphotidylinositol-3 kinase binding site and a PDZ domain binding motif. The protein binds to and is activated by neuregulins and other factors and induces a variety of cellular responses including mitogenesis and differentiation. Multiple proteolytic events allow for the release of a cytoplasmic fragment and an extracellular fragment. Mutations in this gene have been associated with cancer. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq].
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Western blot analysis on SKBR3 cell lysates using anti-Phospho-Her4/ErbB-4 (pY1258) RabMAb (TA303505), 1:2000 dilution. Cells were either (A) treated (B) untreated with EGF.
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