Howard Hughes Medical Institute and Department of Biochemistry, Duke University, Medical Center, Durham, NC, 27710, USA.
Angew Chem Int Ed Engl. 2016 Jul 18;55(30):8490-501. doi: 10.1002/anie.201601412. Epub 2016 May 20.
DNA molecules are not completely stable, they are subject to chemical or photochemical damage and errors that occur during DNA replication resulting in mismatched base pairs. Through mechanistic studies Paul Modrich showed how replication errors are corrected by strand-directed mismatch repair in Escherichia coli and human cells.
DNA 分子并非完全稳定,它们易受化学或光化学损伤,并且在 DNA 复制过程中会发生错误,导致碱基配对不匹配。通过机制研究,Paul Modrich 展示了复制错误如何通过 Escherichia coli 和人类细胞中的链导向错配修复得到纠正。