ERBB2 Protein Overexpression

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** A molecular abnormality indicating the presence of an abnormally high level of the receptor tyrosine-protein kinase erbB-2 protein.

**Synonyms:** - HER2 Protein Overexpression - Proto-Oncogene Neu Protein Overexpression - Receptor Tyrosine-Protein Kinase erbB-2 Protein Overexpression - Tyrosine Kinase-Type Cell Surface Receptor HER2 Protein Overexpression