Format

Send to

Choose Destination
See comment in PubMed Commons below
Cell Cycle. 2002 Jul-Aug;1(4):245-9.

SUMO-1 and p53.

Author information

1
Max-Planck Institute of Biochemistry, Am Klopferspitz 18a, D-82152 Martinsried Germany. melchior@biochem.mpg.de

Abstract

Abundance and activity of the tumor suppressor p53 are regulated by many different posttranslational modifications. These include phosphorylation, acetylation, ribosylation, O-glycosylation or ubiquitination. Three years ago, covalent modification with the ubiquitin- related protein SUMO-1 has been added to this list. SUMO-1 resembles ubiquitin both in structure and in the mechanism of attachment, and is reversibly attached to a large number of proteins. Molecular consequences of this dynamic modification vary between targets and include alterations in protein/protein or protein/DNA interactions, changes in localization, enzymatic activity, or stability. A role of SUMOylation in modulating p53 transcriptional activity has been reported, but is still an issue of controversy. Here we will briefly summarize the pathway of SUMOylation and discuss possible implications for p53 function.

Comment in

PMID:
12429940
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center