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Berkeley Lab researchers get a detailed look at a DNA repair protein in action
Date:10/23/2013

, the MutS protein will bind to a mismatched DNA site by bending the DNA. ATP enzymes will come in to encircle and excise the error. The MutS then straightens out the bend and continues to proofread the DNA.

"This is the first time we used this technique to look at a protein-mediated process like DNA repair in solution with multiple partners," Hura says. "We were able to determine some important details about MutS and the MMR system that should be valuable for drug design. We also now know what to look for in cancer-causing mutations of MutS. When we look at mutant versions of MutS we may be able to see that they do not bend the DNA or form the filament to the same extent as the normal version."


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Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

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