ERBB3 (2F9) Antibody

ERBB3 (v-erb-b2 erythroblastic leukemia viral oncogene homolog 3) is a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. This membrane-bound protein has a neuregulin binding domain but not an active kinase domain. It therefore can bind this ligand but not convey the signal into the cell through 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.

• Clonality: Monoclonal
• Host: Mouse
• Reactivity: Human
• Antigen: Purified recombinant extracellular fragment of human ERBB3 (aa22-369) fused with hIgGFc tag expressed in HEK293 cells.
• Clone: 2F9
• Isotype: Mouse IgG1
• Gene: P21860

• Quantity: 0.1 ml
• Storage: Store at 4°C for short term use only. Store at -20°C for storage over 1 month. Product is guaranteed 6 months from the date of shipment.

• Immunofluorescence (IF)
• Western Blotting (WB)