Atlas One · Host Biology · Scale 03 — Molecular

MDM2

E3 ubiquitin ligase and primary p53 negative regulator; MDM2 ubiquitinates p53 for proteasomal degradation. Amplified in ~7% of cancers, especially well-differentiated liposarcoma. MDM2 inhibitors (AMG-232, milademetan) restore p53 activity in TP53 wild-type tumors.

Also known as: HDM2, MDM2 proto-oncogene, HDMX, p53 E3 ligase, mouse double minute 2

Scale 03 — MolecularScale
draftStatus
2026-06-06Last Reviewed
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mdm2

MDM2

E3 ubiquitin ligase and primary p53 negative regulator; MDM2 ubiquitinates p53 for proteasomal degradation. Amplified in ~7% of cancers, especially well-differentiated liposarcoma. MDM2 inhibitors (AMG-232, milademetan) restore p53 activity in TP53 wild-type tumors.