The ErbB3 gene encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. ErbB3 is a membrane-bound protein which has a neuregulin binding domain but not an active kinase domain. It can therefore bind this ligand but cannot convey a signal into the cell via protein phosphorylation. However it does form heterodimers with other EGF receptor family members which do have kinase activity. Heterodimerization leads to the activation of pathways which lead to cell proliferation or differentiation. Amplification of this gene and/or overexpression of its protein have been reported in numerous cancers including prostate, bladder and breast tumors. Alternate transcriptional splice variants encoding different isoforms have been characterized. One isoform lacks the intermembrane region and is secreted outside the cell. This form acts to modulate the activity of the membrane-bound form. Additional splice variants have also been reported but they have not been thoroughly characterized.

Her3/ErbB3(phospho-Tyr1197); p-HRE3 (Tyr1197); ErbB 3 (phospho Y1197); Receptor tyrosine-protein kinase erbB-3; ErbB-3; c erbB 3; c-erbB3; ErbB 3; cerbB3; ERBB3 protein; cerbB; 3erbB3 S; Glial growth factor receptor; HER 3; HER3; LCCS2; MDA BF 1; MGC88033; p180 ErbB3; p45 sErbB3; p85 sErbB3; proto-oncogene-; receptor tyrosine protein kinase ERB3 [precursor]; Receptor tyrosine protein kinase erbB 3; Receptor tyrosine protein kinase erbB3; Tyrosine kinase type cell surface receptor HER3; V erb b2 avian erythroblastic leukemia viral oncogene homolog 3; v erb b2 erythroblastic leukemia viral oncogene homolog 3 (avian); v erb b2 erythroblastic leukemia viral oncogene homolog 3; ERBB3_HUMAN.

Human,Mouse,Rat

IHC,IF,ICC

IHC 1:100-500
IF 1:100-500
ICC 1:100-1:400

148kD

2065

P21860

https://www.uniprot.org/uniprotkb/P21860

Isoform 1: Cell membrane; Single-pass type I. membrane protein. Isoform 2: Secreted.

Epithelial tissues and brain.

KLH conjugated Synthesised phosphopeptide derived from human HER3 around the phosphorylation site of Tyr1289

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.