DNMT3L facilitates DNA methylation partly by maintaining DNMT3A stability in mouse embryonic stem cells.
DNMT3L facilitates DNA methylation partly by maintaining DNMT3A stability in mouse embryonic stem cells.
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DNMT3L 部分通过维持小鼠胚胎干细胞中 DNMT3A 的稳定性来促进 DNA 甲基化。
DOI:
10.1093/nar/gky947
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发表时间:
2019-01-10
影响因子:
14.9
通讯作者:
Chen T
中科院分区:
文献类型:
--
作者:
Veland N;Lu Y;Hardikar S;Gaddis S;Zeng Y;Liu B;Estecio MR;Takata Y;Lin K;Tomida MW;Shen J;Saha D;Gowher H;Zhao H;Chen T
DNMT3L (DNMT3-like), a member of the DNMT3 family, has no DNA methyltransferase activity but regulates de novo DNA methylation. While biochemical studies show that DNMT3L is capable of interacting with both DNMT3A and DNMT3B and stimulating their enzymatic activities, genetic evidence suggests that DNMT3L is essential for DNMT3A-mediated de novo methylation in germ cells but is dispensable for de novo methylation during embryogenesis, which is mainly mediated by DNMT3B. How DNMT3L regulates DNA methylation and what determines its functional specificity are not well understood. Here we show that DNMT3L-deficient mouse embryonic stem cells (mESCs) exhibit downregulation of DNMT3A, especially DNMT3A2, the predominant DNMT3A isoform in mESCs. DNA methylation analysis of DNMT3L-deficient mESCs reveals hypomethylation at many DNMT3A target regions. These results confirm that DNMT3L is a positive regulator of DNA methylation, contrary to a previous report that, in mESCs, DNMT3L regulates DNA methylation positively or negatively, depending on genomic regions. Mechanistically, DNMT3L forms a complex with DNMT3A2 and prevents DNMT3A2 from being degraded. Restoring the DNMT3A protein level in DNMT3L-deficient mESCs partially recovers DNA methylation. Thus, our work uncovers a role for DNMT3L in maintaining DNMT3A stability, which contributes to the effect of DNMT3L on DNMT3A-dependent DNA methylation.
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影响因子:
12.3
作者:
Gu T;Lin X;Cullen SM;Luo M;Jeong M;Estecio M;Shen J;Hardikar S;Sun D;Su J;Rux D;Guzman A;Lee M;Qi LS;Chen JJ;Kyba M;Huang Y;Chen T;Li W;Goodell MA
通讯作者:
Goodell MA
影响因子:
4
作者:
Chen, ZX;Mann, JR;Chédin, F
通讯作者:
Chédin, F
影响因子:
12.3
作者:
Akalin A;Kormaksson M;Li S;Garrett-Bakelman FE;Figueroa ME;Melnick A;Mason CE
通讯作者:
Mason CE
DOI:
10.1007/978-3-319-43624-1_6
发表时间:
2016-01-01
期刊:
DNA METHYLTRANSFERASES - ROLE AND FUNCTION
影响因子:
--
作者:
Dan, Jiameng;Chen, Taiping
通讯作者:
Chen, Taiping
影响因子:
14.9
作者:
Jurkowska RZ;Anspach N;Urbanke C;Jia D;Reinhardt R;Nellen W;Cheng X;Jeltsch A
通讯作者:
Jeltsch A