F-box protein CFK1 interacts with and degrades de novo DNA methyltransferase in Arabidopsis.
F-box protein CFK1 interacts with and degrades de novo DNA methyltransferase in Arabidopsis.
复制标题
F-box蛋白CFK1与拟南芥DNA甲基转移酶相互作用并降解。
DOI:
10.1111/nph.17103
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Zhong X
中科院分区:
文献类型:
--
作者:
Chen J;Liu J;Jiang J;Qian S;Song J;Kabara R;Delo I;Serino G;Liu F;Hua Z;Zhong X
DNA methylation plays crucial roles in cellular development and stress responses through gene regulation and genome stability control. Precise regulation of DOMAINS REARRANGED METHYLTRANSFERASE 2 (DRM2), thede novoArabidopsis DNA methyltransferase, is crucial to maintain DNA methylation homeostasis to ensure genome integrity. Compared with the extensive studies on DRM2 targeting mechanisms, little information is known regarding the quality control of DRM2 itself.Here, we conducted yeast two‐hybrid screen assay and identified an E3 ligase, COP9 INTERACTING F‐BOX KELCH 1 (CFK1), as a novel DRM2‐interacting partner and targets DRM2 for degradation via the ubiquitin‐26S proteasome pathway inArabidopsis thaliana. We also performed whole genome bisulfite sequencing (BS‐seq) to determine the biological significance of CFK1‐mediated DRM2 degradation.Loss‐of‐functionCFK1leads to increased DRM2 protein abundance and overexpression of CFK1 showed reduced DRM2 protein levels. Consistently, CFK1 overexpression induces genome‐wide CHH hypomethylation and transcriptional de‐repression at specific DRM2 target loci.This study uncovered a distinct mechanism regulatingde novoDNA methyltransferase by CFK1 to control DNA methylation level.
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DOI:
10.1038/nrm4043
发表时间:
2015-09
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Du J;Johnson LM;Jacobsen SE;Patel DJ
通讯作者:
Patel DJ
影响因子:
11.6
作者:
Chen, Xiangsong;Lu, Li;Zhong, Xuehua
通讯作者:
Zhong, Xuehua
DOI:
10.1073/pnas.1209329109
发表时间:
2012-08-07
影响因子:
11.1
作者:
Dowen, Robert H.;Pelizzola, Mattia;Ecker, Joseph R.
通讯作者:
Ecker, Joseph R.
影响因子:
4.5
作者:
Budworth H;Harris FR;Williams P;Lee DY;Holt A;Pahnke J;Szczesny B;Acevedo-Torres K;Ayala-Peña S;McMurray CT
通讯作者:
McMurray CT
影响因子:
7.2
作者:
Clough, SJ;Bent, AF
通讯作者:
Bent, AF