{"product_id":"new-product-230334","title":"HER2 monoclonal antibody","description":"\u003cp\u003eThe ErbB2 (HER2) proto-oncogene encodes a 185 kDa transmembrane, receptor-like glycoprotein with intrinsic tyrosine kinase activity. While ErbB2 lacks an identified ligand, ErbB2 kinase activity can be activated in the absence of a ligand when overexpressed and through heteromeric associations with other ErbB family members . Amplification of the ErbB2 gene and overexpression of its product are detected in almost 40% of human breast cancers . Binding of the c-Cbl ubiquitin ligase to ErbB2 at Tyr1112 leads to ErbB2 poly-ubiquitination and enhances degradation of this kinase . ErbB2 is a key therapeutic target in the treatment of breast cancer and other carcinomas and targeting the regulation of ErbB2 degradation by the c-Cbl-regulated proteolytic pathway is one potential therapeutic strategy. Phosphorylation of the kinase domain residue Tyr877 of ErbB2 (homologous to Tyr416 of pp60c-Src) may be involved in regulating ErbB2 biological activity. The major autophosphorylation sites in ErbB2 are Tyr1248 and Tyr1221\/1222; phosphorylation of these sites couples ErbB2 to the Ras-Raf-MAP kinase signal transduction pathway .\u003c\/p\u003e","brand":"Bioworld","offers":[{"title":"100ul \/ Mouse \/ Human","offer_id":47662866759960,"sku":"MB66197","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/products\/BIOWORLD_f7d9f7c2-4c30-41a2-8ff8-d3753e9a78b9.jpg?v=1707497889","url":"https:\/\/danabiosci.com\/products\/new-product-230334","provider":"Dana Bioscience","version":"1.0","type":"link"}