erbB 2 Receptor Protein Tyrosine Kinase

Medical Condition:
erbB 2 Receptor Protein Tyrosine Kinase

A cell surface protein-tyrosine kinase receptor that is found to be overexpressed in a significant number of adenocarcinomas. It has extensive homology to and can heterodimerize with the EGF receptor (RECEPTOR, EPIDERMAL GROWTH FACTOR), the erbB-3 receptor (RECEPTOR, ERBB-3) and the erbB-4 receptor. Activation of the erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB receptor family members. EC 2.7.11.-.