化学性质：                                                                                                             

产品描述：                                                                                                            

The epidermal growth factor receptor (EGFR; ErbB-1; HER1 inhumans) is the cell-surface receptor for members of the epidermal growth factor family (EGF-family) of extracellular protein ligands1. EGFR (epidermal growth factor receptor) exists on the cell surface and is activated by binding of its specific ligands, including epidermal growth factor and transforming growth factor ∥ (TGF∥). Mutations that lead to EGFR overexpression (known as upregulation) or overactivity have been associated with a number of cancers, including lung cancer, anal cancers and glioblastoma multiforme2. In this latter case a more or less specific mutation of EGFR, called EGFRvIII is often observed. Mutations, amplifications or misregulations of EGFR or family members are implicated in about 30% of all epithelial cancers. Mutations involving EGFR could lead to its constant activation, which could result in uncontrolled cell division - a predisposition for cancer. Consequently, mutations of EGFR have been identified in several types of cancer, and it is the target of an expanding class of anticancer therapies3.

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