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"'Saccharomyces cerevisiae MSH2/6 complex interacts with Holliday junctions and facilitates their cleavage by phage resolution enzymes."

Marsischky GT, Lee S, Griffith J, Kolodner RD



Published March 12, 1999 in J Biol Chem volume 274 .

Pubmed ID: 10066781

Abstract:
Genetic and biochemical studies have indicated that mismatch repair proteins can interact with recombination intermediates. In this study, gel shift assays and electron microscopic analysis were used to show that the Saccharomyces cerevisiae MSH2/6 complex binds to Holliday junctions and has an affinity and specificity for them that is at least as high as it has as for mispaired bases. Under equilibrium binding conditions, the MSH2/6 complex had a Kd of binding to Holliday junctions of 0.5 nM. The MSH2/6 complex enhanced the cleavage of Holliday junctions by T4 endonuclease VII and T7 endonuclease I. This is consistent with the view that the MSH2/6 complex can function in both mismatch repair and the resolution of recombination intermediates as predicted by genetic studies.


This publication refers to following REPAIRtoire entries:

Genes
Proteins


Last modification of this entry: Oct. 6, 2010

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