{"product_id":"cst-41239sf","title":"CST,  41239SF, HER3\/ErbB3 (E4D6O) Mouse Monoclonal Antibody (BSA and Azide Free)","description":"Monoclonal Antibody for studying HER3\/ErbB3. Validated for ELISA+. Highly specific and rigorously validated in-house, HER3\/ErbB3 (E4D6O) Mouse Monoclonal Antibody (BSA and Azide Free) (CST #41239) is ready to ship.\n\n\u003cb\u003eProduct Usage Information\u003c\/b\u003e\nThis formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT\u0026amp;RUN or CUT\u0026amp;Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us . Optimal dilutions\/concentrations should be determined by the end user. BSA and Azide Free antibodies are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity.\n\u003cb\u003eFormulation\u003c\/b\u003e\nSupplied in 1X PBS (10 mM Na 2 HPO 4 , 3 mM KCl, 2 mM KH 2 PO 4 , and 140 mM NaCl (pH 7.8)). BSA and Azide Free.\n\u003cb\u003eStorage\u003c\/b\u003e\nStore at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze\/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.\n\u003cb\u003eSpecificity \/ Sensitivity\u003c\/b\u003e\nHER3\/ErbB3 (E4D6O) Mouse Monoclonal Antibody (BSA and Azide Free) recognizes endogenous levels of total HER3\/ErbB3 protein.\nSpecies Reactivity: Human\n\u003cb\u003eSource \/ Purification\u003c\/b\u003e\nMonoclonal antibody is produced by immunizing animals with a fragment of human ErbB3 protein.\n\u003cb\u003eBackground\u003c\/b\u003e\nHER3\/ErbB3 is a member of the ErbB receptor protein tyrosine kinase family, but it lacks tyrosine kinase activity. Tyrosine phosphorylation of ErbB3 depends on its association with other ErbB tyrosine kinases. Upon ligand binding, heterodimers form between ErbB3 and other ErbB proteins, and ErbB3 is phosphorylated on tyrosine residues by the activated ErbB kinase (1,2). There are at least 9 potential tyrosine phosphorylation sites in the carboxy-terminal tail of ErbB3. These sites serve as consensus binding sites for signal transducing proteins, including Src family members, Grb2, and the p85 subunit of PI3 kinase, which mediate ErbB downstream signaling (3). Both Tyr1222 and Tyr1289 of ErbB3 reside within a YXXM motif and participate in signaling to PI3K (4). Investigators have found that ErbB3 is highly expressed in many cancer cells (5) and activation of the ErbB3\/PI3K pathway is correlated with malignant phenotypes of adenocarcinomas (6). Research studies have demonstrated that in tumor development, ErbB3 may function as an oncogenic unit together with other ErbB members (e.g., ErbB2 requires ErbB3 to drive breast tumor cell proliferation) (7). Thus, investigators view inhibiting interaction between ErbB3 and ErbB tyrosine kinases as a novel strategy for anti-tumor therapy.\n\u003cb\u003eAlternate Names\u003c\/b\u003e\nc-erbB-3; c-erbB3; erb-b2 receptor tyrosine kinase 3; ErbB-3; ERBB3; erbB3-S; FERLK; HER3; human epidermal growth factor receptor 3; LCCS2; MDA-BF-1; MGC88033; p180-ErbB3; p45-sErbB3; p85-sErbB3; Proto-oncogene-like protein c-ErbB-3; Receptor tyrosine-protein kinase erbB-3; Tyrosine kinase-type cell surface receptor HER3; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 3; v-erb-b2 erythroblastic leukemia viral oncogene homolog 3 (avian)\n\n\u003cb\u003eSpecification\u003c\/b\u003e\n\nREACTIVITY: H\nSENSITIVITY: Endogenous\nSource\/Isotype: Mouse IgG2a","brand":"CST","offers":[{"title":"Default Title","offer_id":46800312467625,"sku":"41239SF","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/cst-41239sf","provider":"Iright","version":"1.0","type":"link"}