Base Editor Scanning Reveals Activating Mutations of DNMT3A.
Base Editor Scanning Reveals Activating Mutations of DNMT3A.
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DOI:
10.1021/acschembio.3c00257
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发表时间:
2023-09-15
影响因子:
4
通讯作者:
Liau, Brian B.
中科院分区:
文献类型:
--
作者:
Garcia, Emma M.;Lue, Nicholas Z.;Liang, Jessica K.;Lieberman, Whitney K.;Hwang, Derek D.;Woods, James C.;Liau, Brian B.
DNA methyltransferase 3A (DNMT3A) is a de novo cytosine methyltransferase responsible for establishing proper DNA methylation during mammalian development. Loss-of-function (LOF) mutations to DNMT3A, including the hotspot mutation R882H, frequently occur in developmental growth disorders and hematological diseases, including clonal hematopoiesis and acute myeloid leukemia (AML). Accordingly, identifying mechanisms that activate DNMT3A is of both fundamental and therapeutic interest. Here, we applied a base editor mutational scanning strategy with an improved DNA methylation reporter to systematically identify DNMT3A activating mutations in cells. By integrating an optimized cellular recruitment strategy with paired isogenic cell lines with or without the LOF hotspot R882H mutation, we identify and validate three distinct hyperactivating mutations within or interacting with the regulatory ADD domain of DNMT3A, nominating these regions as potential functional target sites for pharmacological intervention. Notably, these mutations are still activating in the context of a heterozygous R882H mutation. Altogether, we showcase the utility of base editor scanning for discovering functional regions of target proteins.
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影响因子:
14.9
作者:
Emperle M;Rajavelu A;Kunert S;Arimondo PB;Reinhardt R;Jurkowska RZ;Jeltsch A
通讯作者:
Jeltsch A
DOI:
10.1126/science.aab2956
发表时间:
2016-02-12
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Bintu L;Yong J;Antebi YE;McCue K;Kazuki Y;Uno N;Oshimura M;Elowitz MB
通讯作者:
Elowitz MB
影响因子:
50.3
作者:
Russler-Germain DA;Spencer DH;Young MA;Lamprecht TL;Miller CA;Fulton R;Meyer MR;Erdmann-Gilmore P;Townsend RR;Wilson RK;Ley TJ
通讯作者:
Ley TJ
影响因子:
14.8
作者:
Lue, Nicholas Z.;Garcia, Emma M.;Liau, Brian B.
通讯作者:
Liau, Brian B.
DOI:
10.1056/nejmoa1005143
发表时间:
2010-12-16
期刊:
The New England journal of medicine
影响因子:
--
作者:
Ley TJ;Ding L;Walter MJ;McLellan MD;Lamprecht T;Larson DE;Kandoth C;Payton JE;Baty J;Welch J;Harris CC;Lichti CF;Townsend RR;Fulton RS;Dooling DJ;Koboldt DC;Schmidt H;Zhang Q;Osborne JR;Lin L;O'Laughlin M;McMichael JF;Delehaunty KD;McGrath SD;Fulton LA;Magrini VJ;Vickery TL;Hundal J;Cook LL;Conyers JJ;Swift GW;Reed JP;Alldredge PA;Wylie T;Walker J;Kalicki J;Watson MA;Heath S;Shannon WD;Varghese N;Nagarajan R;Westervelt P;Tomasson MH;Link DC;Graubert TA;DiPersio JF;Mardis ER;Wilson RK
通讯作者:
Wilson RK