Crystal structure of the plant epigenetic protein arginine methyltransferase 10.

Crystal structure of the plant epigenetic protein arginine methyltransferase 10.
复制标题

植物表观遗传蛋白精氨酸转移酶10的晶体结构10。

DOI:
10.1016/j.jmb.2011.09.040
复制
发表时间:
2011-11-18
影响因子:
5.6
通讯作者:
Redinbo, Matthew R.
Redinbo, Matthew R.
中科院分区:
生物学2区
文献类型:
--
作者:
Cheng, Yuan;Frazier, Monica;Lu, Falong;Cao, Xiaofeng;Redinbo, Matthew R.

文献摘要

参考文献

被引文献

相似文献

蛋白质精氨酸甲基转移酶10(PRMT 10)是拟南芥(Arabidopsis thaliana,At)中一种调节开花时间的I型精氨酸甲基转移酶。我们提出了一个2.6 μ m分辨率的AtPRMT 10与反应产物,S-腺苷高半胱氨酸的复杂的晶体结构。该结构揭示了一个二聚臂12-20个残基比PRMT结构之前阐明的,因此,基本AtPRMT 10二聚体表现出一个大的中心腔和一个明显的可访问的活性位点。我们采用分子动力学来研究二聚化如何促进AtPRMT 10运动所需的活动,并表明这些运动是保守的其他PRMT酶。最后,功能数据显示,N-末端10个残基的AtPRMT 10影响底物特异性,酶活性是依赖于底物蛋白序列的甲基化位点的远端。总之,这些数据提供了深入了解拟南芥PRMT 10以及PRMT家族酶的其他成员的分子机制。它们突出了AtPRMT 10和其他PRMT之间的差异,但也表明运动是PRMT功能的保守元素。
Protein arginine methyltransferase 10 (PRMT10) is a type-I arginine methyltransferase essential for regulating flowering time in Arabidopsis thaliana (At). We present a 2.6 Å resolution crystal structure of AtPRMT10 in complex with a reaction product, S-adenosylhomocysteine. The structure reveals a dimerization arm 12–20 residues longer than PRMT structures elucidated previously; as a result, the essential AtPRMT10 dimer exhibits a large central cavity and a distinctly accessible active site. We employ molecular dynamics to examine how dimerization facilitates AtPRMT10 motions necessary for activity, and show that these motions are conserved in other PRMT enzymes. Finally, functional data reveal that the N-terminal ten residues of AtPRMT10 influence substrate specificity, and that enzyme activity is dependent on substrate protein sequences distal from the methylation site. Taken together, these data provide insights into the molecular mechanism of Arabidopsis thaliana PRMT10 as well as other members of the PRMT family of enzymes. They highlight differences between AtPRMT10 and other PRMTs, but also indicate that motions are a conserved element of PRMT function.
DOI: 10.1242/jcs.019885
发表时间: 2007-12-15
影响因子: 4
作者:
Bedford, Mark T.
通讯作者: Bedford, Mark T.
DOI: 10.1074/jbc.m704349200
发表时间: 2007-11-09
影响因子: 4.8
作者:
Goulet, Isabelle;Gauvin, Gabrielle;Cote, Jocelyn
通讯作者: Cote, Jocelyn
DOI: 10.1016/s1387-2656(08)00008-2
发表时间: 2008-01-01
期刊: BIOTECHNOLOGY ANNUAL REVIEW, VOL 14
影响因子: --
作者:
Aletta, John M.;Hu, John C.
通讯作者: Hu, John C.
DOI: 10.1038/sj.embor.7401111
发表时间: 2007-12-01
期刊: EMBO REPORTS
影响因子: 7.7
作者:
Niu, Lifang;Lu, Falong;Cao, Xiaofeng
通讯作者: Cao, Xiaofeng
DOI: 10.1002/jcc.10349
发表时间: 2003-12-01
影响因子: 3
作者:
Duan, Y;Wu, C;Kollman, P
通讯作者: Kollman, P