This year, we provided the first comprehensive comparison of the efficiency of MMR of leading and lagging strand replication errors. We demonstrated that exonuclease 1 preferentially repairs mismatches generated by DNA polymerase alpha. We provided strong evidence that ribonucleotides are signals for mismatch repair of leading strand replication errors. Finally, we collaborated with Winfried Edelmann on a study indicating that mouse Exo1 encodes both structural and catalytic functions that play distinct roles in several essential biological processes.

Project Start
Project End
Budget Start
Budget End
Support Year
17
Fiscal Year
2013
Total Cost
$1,718,308
Indirect Cost
City
State
Country
Zip Code
Burkholder, Adam B; Lujan, Scott A; Lavender, Christopher A et al. (2018) Muver, a computational framework for accurately calling accumulated mutations. BMC Genomics 19:345
Van, Christopher; Williams, Jessica S; Kunkel, Thomas A et al. (2015) Deposition of histone H2A.Z by the SWR-C remodeling enzyme prevents genome instability. DNA Repair (Amst) 25:9-14
Lujan, Scott A; Clark, Alan B; Kunkel, Thomas A (2015) Differences in genome-wide repeat sequence instability conferred by proofreading and mismatch repair defects. Nucleic Acids Res 43:4067-74
Kunkel, Thomas A; Erie, Dorothy A (2015) Eukaryotic Mismatch Repair in Relation to DNA Replication. Annu Rev Genet 49:291-313
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Lujan, Scott A; Williams, Jessica S; Clausen, Anders R et al. (2013) Ribonucleotides are signals for mismatch repair of leading-strand replication errors. Mol Cell 50:437-43
Liberti, Sascha E; Larrea, Andres A; Kunkel, Thomas A (2013) Exonuclease 1 preferentially repairs mismatches generated by DNA polymerase ?. DNA Repair (Amst) 12:92-6
Schorzman, Allison N; Perera, Lalith; Cutalo-Patterson, Jenny M et al. (2011) Modeling of the DNA-binding site of yeast Pms1 by mass spectrometry. DNA Repair (Amst) 10:454-65
Castellini, Meryl A; Buguliskis, Jeffrey S; Casta, Louis J et al. (2011) Malaria drug resistance is associated with defective DNA mismatch repair. Mol Biochem Parasitol 177:143-7

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