After several years of serving the research community, our ActiveDriverDB database will be retired on May 1st 2026. Please make sure to download any data you need and update your links or workflows before that date.
We want to sincerely thank all our users for their support, feedback, and collaboration over the years — your contributions have been invaluable to this project. A special thank you to Dr. Michal Krassowski for leading the development of our open-source software and database.
For any questions or assistance, please contact Jüri Reimand (juri.reimand@utoronto.ca).
MDM4 (NM_002393) - MDM4 regulator of p53
Protein Mdm4 Isoform 1
Legend
Mutation impacts
Sites
- C-linked
- N-linked
- O-linked
- S-linked
- SARS-CoV-2
Others
If you have any questions or feedback about this protein:
Contact us
Mutations Visualisation
Protein summary
This gene encodes a nuclear protein that contains a p53 binding domain at the N-terminus and a RING finger domain at the C-terminus, and shows structural similarity to p53-binding protein MDM2. Both proteins bind the p53 tumor suppressor protein and inhibit its activity, and have been shown to be overexpressed in a variety of human cancers. However, unlike MDM2 which degrades p53, this protein inhibits p53 by binding its transcriptional activation domain. This protein also interacts with MDM2 protein via the RING finger domain, and inhibits the latter's degradation. So this protein can reverse MDM2-targeted degradation of p53, while maintaining suppression of p53 transactivation and apoptotic functions. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Feb 2011].
- Strand
- +
- Chromosome
- 1
- Protein
- 490 residues
- All mutations
- 59
- PTM sites
- 18
- CDS
- 204,494,646 - 204,518,810
- Transcription
- 204,485,506 - 204,527,248