The effect of sequence evolution on protein structural divergence.
The effect of sequence evolution on protein structural divergence.
复制标题
序列进化对蛋白质结构差异的影响。
DOI:
10.1093/molbev/msp020
复制
发表时间:
2009
影响因子:
10.7
通讯作者:
Williams SG
中科院分区:
文献类型:
--
作者:
Williams SG
The complex constraints imposed by protein structure and function result in varied rates of sequence and structural divergence in proteins. Analysis of sequence differences between homologous proteins can advance our understanding of structural divergence and some of the constraints that govern the evolution of these molecules. Here, we assess the relationship between amino acid sequence and structural divergence. Firstly, we demonstrate that the relationship between protein sequence and structural divergence is governed by a variety of evolutionary constraints, including solvent exposure and secondary structure. Secondly, although compensatory substitutions are widespread, we find many radical size-changing mutations that are not compensated by neighboring complementary changes. Instead, these noncompensated substitutions are mitigated by alteration of protein structure. These results suggest a combined mechanism of accommodating substitutions in proteins, involving both coevolution and structural accommodation. Such a mechanism can explain previously observed correlated substitutions of residues that are distant both in sequence and structure, allowing an integrated view of sequence and structural divergence of proteins.
登录
查看更多内容
影响因子:
2
作者:
L. Pritchard;M. Dufton
通讯作者:
M. Dufton
影响因子:
64.8
作者:
Socolich, M;Lockless, SW;Ranganathan, R
通讯作者:
Ranganathan, R
影响因子:
5.7
作者:
GHOSH, D;WAWRZAK, Z;DUAX, WL
通讯作者:
DUAX, WL
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--
影响因子:
5.6
作者:
Carter,DC;Melis,KA;O'Donnell,SE;Burgess,BK;FureyJr,WR;Wang,BC;Stout,CD
通讯作者:
Stout,CD