HER3 (Phospho-Y1222) polyclonal antibody

Product Specifications

Background

The EGF receptor family comprises several related receptor tyrosine kinases that are frequently overexpressed in a variety of carcinomas. Members of this receptor family include EGFR (HER1), Neu (ErbB-2, HER2), ErbB-3 (HER3) and ErbB-4 (HER4), which form either homodimers or heterodimers upon ligand binding. Full length ErbB-3 is overexpressed in human mammary tumors. The ErbB-3 gene also produces several alternative variants, including a secreted form which negatively regulates heregulin stimulated ErbB activation. ErbB-3 heterodimerizes with Neu and binds heregulin in order to activate phosphoinositide (PI) 3-kinase. The recruitment and activation of PI 3-kinase occurs via its interaction with phosphorylated YXXM motifs in the carboxy terminus of ErbB-3.

CAS Number

9007-83-4

Structure Composition

Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Product Name Alternative

ERBB3; ERBB3 protein; erbB3 S; ERBB3; Glial growth factor receptor; HER-3; HER3; LCCS2; MDA BF 1; MGC88033; p180 ErbB3; p45 sErbB3; p85 sErbB3; proto-oncogene-like protein c ErbB 3

Swiss Prot

P21860

Reactivity

Human, Mouse, Rat

Immunogen

Synthetic phosphopeptide derived from human HER3 around the phosphorylation site of Tyrosine 1222.

Conjugation

Unconjugated

Related Pathways

ErbB HER Signaling

Applications

WB IHC IF

Dilution

WB:1:500~1:1000 IHC:1:50~1:200 IF:1:50~1:200

Purity

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE) .