A common mode of recognition for methylated CpG.

A common mode of recognition for methylated CpG.
复制标题

DOI:
10.1016/j.tibs.2012.12.005
复制
发表时间:
2013-04
影响因子:
13.8
通讯作者:
Cheng, Xiaodong
Cheng, Xiaodong
中科院分区:
生物学1区
文献类型:
--
作者:
Liu, Yiwei;Zhang, Xing;Blumenthal, Robert M.;Cheng, Xiaodong

文献摘要

参考文献

被引文献

相似文献

关于脊椎动物DNA甲基化已知很多,但还不知道特定序列中的甲基化CpG是如何被识别的。最近发现的两种C2H2锌指蛋白与甲基化DNA形成的复合体,揭示了5-甲基胞嘧啶(5mC)的共同识别模式,该模式涉及5mC-Arg-G三联体。在这两种锌蛋白中,第一个锌结合组氨酸(RH基序)之前的精氨酸可以与5mCpG或TPG二核苷酸相互作用。在所研究的>300人KRAB(Krüppel相关盒)结构域的锌F蛋白家族中,三分之二的蛋白至少含有一个含有RH基序的锌F。我们认为RH-锌F基序为5mCpG提供了特异性,而邻近的锌F指识别周围的DNA序列上下文。
Much is known about vertebrate DNA methylation, however it is not known how methylated CpG within particular sequences is recognized. Two recent structures of C2H2 zinc finger (ZnF) proteins, in complex with methylated DNA, reveal a common recognition mode for 5-methylcytosine (5mC) that involves a 5mC-Arg-G triad. In the two ZnF proteins, an arginine that precedes the first Zn-binding histidine (RH motif) can interact with 5mCpG or TpG dinucleotide. Among a family of >300 human KRAB (Krüppel-associated box) domain-containing ZnF proteins examined, two-thirds contain at least one ZnF that includes an RH motif. We propose that the RH-ZnF motifs provide specificity for 5mCpG, while the neighboring ZnF fingers recognize the surrounding DNA sequence context.
DOI: 10.1242/dev.022897
发表时间: 2008-09
期刊: Development (Cambridge, England)
影响因子: --
作者:
García-García MJ;Shibata M;Anderson KV
通讯作者: Anderson KV
DOI: 10.1371/journal.pone.0015367
发表时间: 2010-12-23
期刊: PloS one
影响因子: 3.7
作者:
Globisch D;Münzel M;Müller M;Michalakis S;Wagner M;Koch S;Brückl T;Biel M;Carell T
通讯作者: Carell T
DOI: 10.1128/mcb.00615-12
发表时间: 2012-09-01
影响因子: 5.3
作者:
Krebs, Christopher J.;Schultz, David C.;Robins, Diane M.
通讯作者: Robins, Diane M.
DOI: 10.1016/j.jmb.2003.10.071
发表时间: 2004-01-09
影响因子: 5.6
作者:
Lamoureux, JS;Maynes, JT;Glover, JNM
通讯作者: Glover, JNM
DOI: 10.1126/science.1190830
发表时间: 2010-08-06
期刊: SCIENCE
影响因子: 56.9
作者:
Gregg, Christopher;Zhang, Jiangwen;Dulac, Catherine
通讯作者: Dulac, Catherine