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Anti-HER2 antibody produced in rabbit

affinity isolated antibody

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C-erbB-2, Epidermal growth factor receptor-related protein, ErbB2, HER2, kinase ErbB2
MDL number:

biological source


Quality Level



antibody form

affinity isolated antibody

antibody product type

primary antibodies




buffered aqueous solution

mol wt

antigen 137 kDa

species reactivity

human, mouse, rat


~1 mg/mL


ELISA: 1:20000
immunofluorescence: 1:100-1:500

NCBI accession no.

UniProt accession no.

shipped in

wet ice

storage temp.


target post-translational modification


Gene Information

human ... ERBB2(2064)

General description

Human epidermal growth factor receptor 2 (HER2), or erb-b2 receptor tyrosine kinase 2 (ErbB2), is encoded by the gene mapped to human chromosome 17. The encoded protein belongs to the family of epidermal growth factors. HER2 membrane protein is characterized with a cysteine-rich extracellular ligand-binding domain, a hydrophobic membrane spanning region, and an intracellular tyrosine kinase domain. This protein does not have a ligand, and it either forms heterodimers with other family members or homodimer with itself when expressed at very high levels, to get activated. HER2 is expressed at low level in normal tissues, but at high level in breast cancer tissues.


The antiserum was produced against synthesized peptide derived from human HER2.

Immunogen Range: 661-710

Biochem/physiol Actions

Human epidermal growth factor receptor 2 (HER2) signaling pathway stimulates cell proliferation and survival in the majority of breast cancers. Thus, overexpression of this protein causes breast cancer. Heterodimer complex of HER2 and phosphatidylinositide 3-kinase (PI3K) is the most potent stimulator of the PI3K/AKT anti-apoptosis pathway. Increased expression of HER2 is also observed in ovarian, colorectal, pancreatic, endometrial and gastric cancers. Trastuzumab, an antibody, works by binding to a domain in the external domain of HER2. This domain is missing in p95, a truncated form of HER2, and hence these cancer cells show resistance to trastuzumab. HER2 protein can be used as a prognostic marker and as a therapeutic option for gynecologic cancers.

Features and Benefits

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Physical form

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

10 - Combustible liquids




Not applicable


Not applicable

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The role of p95HER2 in trastuzumab resistance in breast cancer.
Ozkavruk Eliyatkin N, et al.
Journal of B.U.ON. : Official Journal of the Balkan Union of Oncology, 21(2), 382-389 (2016)
HER2: biology, detection, and clinical implications.
Gutierrez C and Schiff R.
Archives of Pathology & Laboratory Medicine, 135(1), 55-62 (2011)
HER2 expression beyond breast cancer: therapeutic implications for gynecologic malignancies.
English DP, et al.
Molecular Diagnosis & Therapy, 17(2), 85-99 (2013)

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