Atlas One · Host Biology · Scale 03 — Molecular

HER2

ErbB2/HER2 receptor tyrosine kinase; ligandless but preferred ErbB dimerization partner amplifying EGFR/HER3/HER4 signaling. Amplified in 15–20% of breast cancer and 15% of gastric cancer. Targeted by trastuzumab, pertuzumab, T-DM1, and T-DXd (trastuzumab deruxtecan).

Also known as: ErbB2, HER-2, HER2/neu, c-erbB-2, CD340, proto-oncogene HER2

Scale 03 — MolecularScale
draftStatus
2026-06-06Last Reviewed
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her2

HER2

ErbB2/HER2 receptor tyrosine kinase; ligandless but preferred ErbB dimerization partner amplifying EGFR/HER3/HER4 signaling. Amplified in 15–20% of breast cancer and 15% of gastric cancer. Targeted by trastuzumab, pertuzumab, T-DM1, and T-DXd (trastuzumab deruxtecan).