ERBB2

(redirected from receptor tyrosine-protein kinase erbB-2)

ERBB2

A gene on chromosome 17q11.2-q12 that encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. ERBB2 has no ligand-binding domain and thus cannot bind growth factors; it does, however, bind to other ligand-bound EGF receptor family members, forming a heterodimer, stabilising ligand binding and enhancing kinase-mediated activation of downstream signalling pathways (e.g., those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase).

Molecular pathology
ERBB2 amplification and overexpression commonly occurs in breast and ovarian cancers.
References in periodicals archive ?
HER2, also known as HER2/neu, or receptor tyrosine-protein kinase erbB-2, is the target of the multibillion dollar antibody cancer drugs trastuzumab, pertuzumab and trastuzumab emtansine and is implicated in breast cancer, ovarian, gastric, and certain uterine cancers.
The researchers whittled the field of potential biomarkers down to eight: prolactin, transthyretin, thrombospondin-1, E-selectin, C-C motif chemokine 5, macrophage migration inhibitory factor, plasminogen activator inhibitor 1, and receptor tyrosine-protein kinase erbB-2.

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