2244 Phospho-HER2/ErbB2 (Tyr1248)/EGFR (Tyr1173) Antibody #2244

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产品详细参数如下>>>>

产品名称：Phospho-HER2/ErbB2 (Tyr1248)/EGFR (Tyr1173) Antibody #2244
货号：2244
品牌：CST(cell signaling)
抗体来源：Rabbit
克隆类型： Polyclonal
规格：

No.	Size	Price
2244S	100 ul (10 western blots)	询价

抗体应用：

Applications	Reactivity	Sensitivity	MW (kDa)	Source
W	H	Endogenous	185	Rabbit

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on sequence homology.
特异性/敏感度： Phospho-HER2/ErbB2 (Tyr1248)/ EGFR (Tyr 1173) Antibody detects ErbB2 only when phosphorylated at tyrosine 1248 and EGFR only when phosphorylated at tyrosine 1173.
来源及纯化方法： Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr1248 of human ErbB2. Antibodies are purified by protein A and peptide affinity chromatography.
抗体背景：

The ErbB2 (HER2) proto-oncogene encodes a 185 kDa transmembrane, receptor-like glycoprotein with intrinsic tyrosine kinase activity (1). 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 (2). Amplification of the ErbB2 gene and overexpression of its product are detected in almost 40% of human breast cancers (3). Binding of the c-Cbl ubiquitin ligase to ErbB2 at Tyr1112 leads to ErbB2 poly-ubiquitination and enhances degradation of this kinase (4). 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 (1,5).

关键词：CST，抗体，一抗{byao_back}{byao_back2}

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