A de novo peptide hexamer with a mutable channel.

A de novo peptide hexamer with a mutable channel.
复制标题

DOI:
10.1038/nchembio.692
复制
发表时间:
2011-10-30
影响因子:
14.8
通讯作者:
Woolfson, Derek N.
Woolfson, Derek N.
中科院分区:
生物学1区
文献类型:
--
作者:
Zaccai, Nathan R.;Chi, Bertie;Thomson, Andrew R.;Boyle, Aimee L.;Bartlett, Gail J.;Bruning, Marc;Linden, Noah;Sessions, Richard B.;Booth, Paula J.;Brady, R. Leo;Woolfson, Derek N.

文献摘要

参考文献

被引文献

相似文献

新蛋白质的设计扩展了天然蛋白质结构的曲目,这是一个艰巨的挑战。这一领域的成功将增加对蛋白质结构的理解,并提供可用于生物技术和合成生物学的新支架。本文描述了一种新型螺旋状蛋白的设计、表征和x射线晶体结构。从头序列形成一个独立的,平行的,6螺旋束与通道通过它运行。虽然只有疏水性亮氨酸和异亮氨酸侧链,但6 Å通道是可渗透的。通道内的一层亮氨酸残基是可变的,接受极性天冬氨酸(Asp)和组氨酸(His)侧链,并导致管腔内溶剂的细分和组织。此外,这些突变体可以组合形成稳定且独特的(Asp-His)3异六聚体。这些新结构为具有新功能的蛋白质工程提供了基础。
The design of new proteins that expand the repertoire of natural protein structures represents a formidable challenge. Success in this area would increase understanding of protein structure, and present new scaffolds that could be exploited in biotechnology and synthetic biology. Here we describe the design, characterisation and X-ray crystal structure of a new coiled-coil protein. The de novo sequence forms a stand-alone, parallel, 6-helix bundle with a channel running through it. Although lined exclusively by hydrophobic leucine and isoleucine side chains, the 6 Å channel is permeable to water. One layer of leucine residues within the channel is mutable accepting polar aspartic acid (Asp) and histidine (His) side chains, and leading to subdivision and organization of solvent within the lumen. Moreover, these mutants can be combined to form a stable and unique (Asp-His)3 heterohexamer. These new structures provide a basis for engineering de novo proteins with new functions.
DOI: 10.1016/j.jmb.2010.08.058
发表时间: 2011-01-28
影响因子: 5.6
作者:
Grigoryan G;Degrado WF
通讯作者: Degrado WF
DOI: 10.1107/s0907444904019158
发表时间: 2004-12-01
影响因子: 2.2
作者:
Emsley, P;Cowtan, K
通讯作者: Cowtan, K
DOI: 10.1002/prot.22651
发表时间: 2010-04-01
影响因子: 2.9
作者:
MacDonald, Jarnes T.;Maksimiak, Katarzyna;Taylor, William R.
通讯作者: Taylor, William R.
DOI: 10.1038/nature07885
发表时间: 2009-04-16
期刊: NATURE
影响因子: 64.8
作者:
Grigoryan, Gevorg;Reinke, Aaron W.;Keating, Amy E.
通讯作者: Keating, Amy E.
DOI: 10.1107/s0907444909052925
发表时间: 2010-02
期刊: Acta crystallographica. Section D, Biological crystallography
影响因子: --
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者: Zwart PH