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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Interaction of mismatch repair protein PMS2 and the p53-related transcription factor p73 in apoptosis response to cisplatin.

Mismatch repair (MMR) proteins contribute to genome integrity by correcting replication errors. In higher eukaryotes, MMR proteins also regulate the cellular response to DNA lesions such as oxidized, alkylated, or crosslinked bases. Previous studies have linked MMR proteins to the activation of apoptosis through p53-dependent and p53-independent mechanisms. MMR-deficient cells exhibit variable defects in the induction of p53 and its related p73, which are activators of apoptosis. However, the specific role of each MMR protein in the regulation of apoptosis has not been determined. Here, we describe an interaction between PMS2, an MMR protein, and p73. This interaction causes the stabilization of p73 and the redistribution of PMS2 to the nuclear compartment. Exposure to cisplatin enhances the association between PMS2 and p73. Moreover, stimulation of the p73 proapoptotic function by cisplatin requires PMS2. These results suggest that PMS2 contributes to genome integrity not only through DNA repair but also by enhancing DNA damage-induced apoptosis.[1]

References

  1. Interaction of mismatch repair protein PMS2 and the p53-related transcription factor p73 in apoptosis response to cisplatin. Shimodaira, H., Yoshioka-Yamashita, A., Kolodner, R.D., Wang, J.Y. Proc. Natl. Acad. Sci. U.S.A. (2003) [Pubmed]
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