Lane 1: SK-Br-3 cell lysate
Lane 2: SKOV-3 cell lysate
Rabbit polyclonal primary
HER2 / ErbB2 Rabbit Polyclonal Antibody (ER0106)
SKOV-3, SKBR-3, human stomach carcinoma tissue
Store at +4C after thawing. Aliquot store at -20C or -80C. Avoid repeated freeze / thaw cycles.
1*PBS (pH7.4), 0.2% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Peptide affinity purified
HER2 / ErbB2
Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog antibody; C erb B2/neu protein antibody; CD340 antibody; CD340 antigen antibody; Cerb B2/neu protein antibody; CerbB2 antibody; Erb b2 receptor tyrosine kinase 2 antibody; ERBB2 antibody; ERBB2_HUMAN antibody; HER 2 antibody; HER 2/NEU antibody; HER2 antibody; Herstatin antibody; Human epidermal growth factor receptor 2 antibody; Metastatic lymph node gene 19 protein antibody; MLN 19 antibody; MLN19 antibody; NEU antibody; NEU proto oncogene antibody; Neuro/glioblastoma derived oncogene homolog antibody; Neuroblastoma/glioblastoma derived oncogene homolog antibody; NGL antibody; p185erbB2 antibody; Proto-oncogene c-ErbB-2 antibody; Proto-oncogene Neu antibody; Receptor tyrosine-protein kinase erbB-2 antibody; TKR1 antibody; Tyrosine kinase type cell surface receptor HER2 antibody; Tyrosine kinase-type cell surface receptor HER2 antibody; V erb b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog) antibody; V erb b2 avian erythroblastic leukemia viral oncogene homolog 2 antibody; V erb b2 avian erythroblastic leukemia viral oncoprotein 2 antibody; V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) antibody; V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog antibody; Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) antibody
Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
Expressed in a variety of tumor tissues including primary breast tumors and tumors from small bowel, esophagus, kidney and mouth.
Autophosphorylated. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit (Probable). Ligand-binding increases phosphorylation on tyrosine residues. Signaling via SEMA4C promotes phosphorylation at Tyr-1248. Dephosphorylated by PTPN12.
HER2 is a member of the human epidermal growth factor receptor (HER/EGFR/ERBB) family. Amplification or overexpression of this oncogene has been shown to play an important role in the development and progression of certain aggressive types of breast cancer. In recent years the protein has become an important biomarker and target of therapy for approx. 30% of breast cancer patients. Over-expression is also known to occur in ovarian, stomach, and aggressive forms of uterine cancer, such as uterine serous endometrial carcinoma. The expression of HER2 is regulated by signaling through estrogen receptors. Normally, estradiol and tamoxifen acting through the estrogen receptor down-regulate the expression of HER2. However, when the ratio of the coactivator AIB-3 exceeds that of the corepressor PAX2, the expression of HER2 is upregulated in the presence of tamoxifen, leading to tamoxifen-resistant breast cancer.