Intrinsically disordered regions regulate both catalytic and non-catalytic activities of the MutLα mismatch repair complex
Intrinsically disordered regions regulate both catalytic and non-catalytic activities of the MutLα mismatch repair complex
复制标题
本质无序区域调节 MutLα 错配修复复合物的催化和非催化活性
DOI:
10.1101/475152
复制
发表时间:
2018
影响因子:
14.9
通讯作者:
Ilya J. Finkelstein
中科院分区:
文献类型:
--
作者:
Yoori Kim;C. Furman;Carol M Manhart;E. Alani;Ilya J. Finkelstein
Intrinsically disordered regions (IDRs) are present in at least 30% of the eukaryotic proteome and are enriched in chromatin-associated proteins. Using a combination of genetics, biochemistry, and single-molecule biophysics, we characterize how IDRs regulate the functions of the yeast MutLα (Mlh1-Pms1) mismatch repair (MMR) complex. Shortening or scrambling the IDRs in both subunits ablates MMR in vivo. Mlh1-Pms1 complexes with shorter IDRs that disrupt MMR retain wild-type DNA binding affinity but are impaired for diffusion on both naked and nucleosome-coated DNA. Moreover, the IDRs also regulate the ATP hydrolysis and nuclease activities that are encoded in the structured N- and C-terminal domains of the complex. This combination of phenotypes underlies the catastrophic MMR defect seen with the mutant MutLα in vivo. More broadly, this work highlights an unanticipated multi-functional role for IDRs in regulating both facilitated diffusion on chromatin and nucleolytic processing of a DNA substrate.
登录
查看更多内容
影响因子:
3.5
作者:
Jennifer J. Wanat;Nikhil Singh;E. Alani
通讯作者:
Jennifer J. Wanat;Nikhil Singh;E. Alani
影响因子:
3.8
作者:
Goellner EM;Putnam CD;Kolodner RD
通讯作者:
Kolodner RD
影响因子:
5.6
作者:
Warren C;Shechter D
通讯作者:
Shechter D
影响因子:
10.5
作者:
ALANI, E;CHI, NW;KOLODNER, R
通讯作者:
KOLODNER, R
影响因子:
5.6
作者:
Plys,AaronJ;Rogacheva,MariaV;Greene,EricC;Alani,Eric
通讯作者:
Alani,Eric