ERBB4 Antibody / HER4

• Catalog Number: orb639632
• Category: Antibodies
• Description: 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. The gene encoding ErbB-4 is expressed as a full-length protein, which produces a short membrane-anchored cytoplasmic domain fragment and a long ectodomain fragment. The short fragment is heavily tyrosine phosphorylated and possesses tyrosine kinase catalytic activity toward an exogenous substrate. Proteolytic cleavage of ErbB-4 is promoted by the binding of heregulin. ErbB-4 is involved in cell proliferation and differentiation and its expression is highest in breast carcinoma cell lines, normal skeletal muscle, heart, pituitary, brain and cerebellum. Its expression in breast cancer, pediatric brain cancer and other types of carcinomas has been reported in studies which suggest ErbB4 expression is involved in both normal tissue development and carcinogenesis.
• Clonality: Monoclonal
• Species/Host: Mouse
• Isotype: Mouse IgG2b, kappa
• Conjugation: Unconjugated
• Reactivity: Human
• Immunogen: A recombinant human partial protein (amino acids 1116-1269) was used as the immunogen for the HER-4 antibody.
• UniProt ID: Q15303
• Tested applications: FACS, IF
• Dilution range: Flow cytometry: 1-2ug/million cells in 0.1ml,Immunofluorescence: 1-2ug/ml
• Application notes: Optimal dilution of the antibody should be determined by the researcher.
• Antibody Type: Primary Antibody
• Clone Number: HFR-1
• Formula: 0.2 mg/ml with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide
• 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.
• Research Area: Apoptotic, Cancer, Developmental Biology, Epigenet
• Note: For research use only
• Expiration Date: 12 months from date of receipt.

SDS-PAGE analysis of purified, BSA-free HER-4 antibody (clone HFR-1) as confirmation of integrity and purity.

Flow cytometry testing of PFA-fixed human MCF7 cells with HER-4 antibody (clone HFR-1); Red=isotype control, Blue= HER-4 antibody.

Immunofluorescent staining of permeabilized human MCF7 cells with HER-4 antibody (clone HFR-1, green) and Reddot nuclear stain (red).