Molecular Basis for Autocatalytic Backbone N-Methylation in RiPP Natural Product Biosynthesis.

Molecular Basis for Autocatalytic Backbone N-Methylation in RiPP Natural Product Biosynthesis.
复制标题

DOI:
10.1021/acschembio.8b00668
复制
发表时间:
2018-10-19
影响因子:
4
通讯作者:
Nair SK
Nair SK
中科院分区:
生物学2区
文献类型:
--
作者:
Ongpipattanakul C;Nair SK

文献摘要

参考文献

被引文献

相似文献

核酸、蛋白质和多肽的n -甲基化是一种对生物调控有重要影响的化学修饰。尽管结构变化很简单,但n -甲基化可以影响多种功能,包括表观遗传学、蛋白质复合物形成和微管稳定性。虽然细菌和真核生物蛋白质中α-氨基的n -甲基化的例子有限,但没有催化剂在蛋白质或肽中进行翻译后甲基化的例子。最近的研究发现,在担子菌产生的核糖体合成的天然产物家族中,有一些酶在肽底物上催化主干n -甲基化,这是一个很少有生化先例的反应。在这里,我们描述了Dendrothele bispora dbOphMA的晶体结构,Dendrothele bispora dbOphMA是一种甲基转移酶,可催化多肽主链上的多个n -甲基化。我们进一步开展这种催化剂的生化研究,以确定促进这种不寻常的化学转化的分子细节。本文描述的结构和生化框架可以促进催化剂的生物技术应用,用于快速生产主干n -甲基化肽。
N-Methylation of nucleic acids, proteins and peptides is a chemical modification with significant impact on biological regulation. Despite the simplicity of the structural change, N-methylation can influence diverse functions including epigenetics, protein complex formation, and microtubule stability. While there are limited examples of N-methylation of the α-amino group of bacterial and eukaryotic proteins, there are no examples of catalysts that carry out the post-translation methylation of backbone amides in proteins or peptides. Recent studies have identified enzymes that catalyze backbone N-methylation on a peptide substrate, a reaction with little biochemical precedent, in a family of ribosomally synthesized natural products produced in basidiomycetes. Here, we describe the crystal structures of Dendrothele bispora dbOphMA, a methyltransferase that catalyzes multiple N-methylations on the peptide backbone. We further carry out biochemical studies of this catalyst to determine the molecular details that promote this unusual chemical transformation. The structural and biochemical framework described here could facilitate biotechnological applications of catalysts for the rapid production of backbone N-methylated peptides.
DOI: 10.1186/s13072-017-0130-8
发表时间: 2017
影响因子: 3.9
作者:
Edwards JR;Yarychkivska O;Boulard M;Bestor TH
通讯作者: Bestor TH
DOI: 10.1016/j.bbapap.2015.04.015
发表时间: 2015-08
影响因子: 3.2
作者:
Gerlt, John A.;Bouvier, Jason T.;Davidson, Daniel B.;Imker, Heidi J.;Sadkhin, Boris;Slater, David R.;Whalen, Katie L.
通讯作者: Whalen, Katie L.
DOI: 10.1073/pnas.1620499114
发表时间: 2017-06-20
影响因子: 11.1
作者:
Chekan, Jonathan R.;Estrada, Paola;Nair, Satish K.
通讯作者: Nair, Satish K.
DOI: 10.1074/jbc.m113.472605
发表时间: 2013-06-28
影响因子: 4.8
作者:
Garcia-Fontana, Cristina;Antonio Reyes-Darias, Jose;Krell, Tino
通讯作者: Krell, Tino
DOI: 10.1016/j.tips.2013.11.005
发表时间: 2014-02
影响因子: 13.8
作者:
Filtz, Theresa M.;Vogel, Walter K.;Leid, Mark
通讯作者: Leid, Mark