HER2 Antibody / ErbB2

• Catalog Number: orb2642845
• Category: Antibodies
• Description: Recognizes a protein of 185kDa, which is identified as c-erbB-2/HER-2/neu. Its epitope is localized in the extracellular domain. C-erbB-2/HER-2 is a member of the EGFR family. This MAb is specific and shows minimal cross-reaction with other members of the EGFR-family. Receptors of this family are located on the plasma membrane and consist of an extracellular ligand-binding domain that is connected to a large intracellular domain by a single transmembrane sequence. c-erbB-2/HER-2 protein is over-expressed in a variety of carcinomas especially those of breast and ovary.
• Species/Host: Mouse
• Clonality: Monoclonal
• Clone Number: ERBB2/3257
• Tested applications: FACS, IHC-P
• Reactivity: Human
• Isotype: Mouse IgG2b, kappa
• Immunogen: A recombinant human HER-2 protein fragment within amino acids 311-462 was used as the immunogen for the HER-2 antibody.
• Dilution range: Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT,Flow cytometry: 1-2ug/million cells
• Purity: Protein G affinity chromatography
• Conjugation: Unconjugated
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
• Hazard Information: This HER-2 antibody is available for research use only.
• UniProt ID: P04626
• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Buffer/Preservatives: 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin (US sourced) and 0.05% sodium azide
• Note: For research use only
• Application notes: Optimal dilution of the HER-2 antibody should be determined by the researcher.1. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.
• Expiration Date: 12 months from date of receipt.

IHC staining of FFPE human breast cancer with HER-2 antibody (clone ERBB2/3257). HIER: boil tissue sections in pH6, 10mM citrate buffer, for 10-20 min and allow to cool before testing.

IHC staining of FFPE human breast cancer with HER-2 antibody (clone ERBB2/3257). HIER: boil tissue sections in pH6, 10mM citrate buffer, for 10-20 min and allow to cool before testing.

Analysis of HuProt (TM) microarray containing more than 19000 full-length human proteins using HER-2 antibody (clone ERBB2/3257). These results demonstrate the foremost specificity of the ERBB2/3257 mAb. Z- and S- score: The Z-score represents the strength of a signal that an antibody (in combination with a fluorescently-tagged anti-IgG secondary Ab) produces when binding to a particular protein on the HuProt (TM) array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If the targets on the HuProt (TM) are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-scores. The S-score therefore represents the relative target specificity of an Ab to its intended target.

SDS-PAGE analysis of purified, BSA-free HER-2 antibody (clone ERBB2/3257) as confirmation of integrity and purity.

Flow cytometry staining of PFA-fixed human MCF7 cells with HER-2 antibody; Red=isotype control, Blue= HER-2 antibody.