MDMX (phospho Ser367) Polyclonal Antibody

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MDM4 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.

Synthesized peptide derived from human MDMX around the phosphorylation site of S367

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen

Phospho-MDMX (S367) Polyclonal Antibody detects endogenous levels of MDMX protein only when phosphorylated at S367.