MLH1, PMS1, and MSH2 interactions during the initiation of DNA mismatch repair in yeast

Tomas A. Prolla, Qishen Pang, Eric Alani, Richard D. Kolodner, Robert (Mike) Liskay

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Abstract

The discovery that mutations in DNA mismatch repair genes can cause hereditary nonpolyposis colorectal cancer has stimulated interest in understanding the mechanism of DNA mismatch repair in eukaryotes. In the yeast Saccharomyces cerevisiae, DNA mismatch repair requires the MSH2, MLH1, and PMS1 proteins. Experiments revealed that the yeast MLH1 and PMS1 proteins physically associate, possibly forming a heterodimer, and that MLH1 and PMS1 act in concert to bind a MSH2-heteroduplex complex containing a G-T mismatch. Thus, MSH2, MLH1, and PMS1 are likely to form a ternary complex during the initiation of eukaryotic DNA mismatch repair.

Original languageEnglish (US)
Pages (from-to)1091-1093
Number of pages3
JournalScience
Volume265
Issue number5175
Publication statusPublished - Aug 19 1994

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Cite this

Prolla, T. A., Pang, Q., Alani, E., Kolodner, R. D., & Liskay, R. M. (1994). MLH1, PMS1, and MSH2 interactions during the initiation of DNA mismatch repair in yeast. Science, 265(5175), 1091-1093.