DRSP:蛋白质单残基替换结构数据库（英文）

DRSP:a Structural Database for Single Residue Substitutions in PDB

蛋白质残基替换是基因突变的产物之一,它可能改变蛋白质三维结构,对其生物学功能产生重大影响,因此研究蛋白质残基替换与结构改变的关系具有重要意义.随着实验解析蛋白质结构的数量迅猛增长,越来越多的野生型-突变体被应用于结构生物学的比较研究中.本研究从蛋白质三维结构数据库(PDB)出发,收集和计算了大量结构特征数据,构建了一个目前已知最大的野生型-突变体(单残基差异)的结构对数据库DRSP,展示出氨基酸类型和主链偏好性对结构保守性的相关性.DRSP的开放使用可为高精度的蛋白质结构分析预测提供有用信息,它的数据库网址是http://www.labshare.cn/drsp/index.php.

Substitutions of residues introduced by gene mutations can impact protein structures and often alternate protein properties.Identifying substitution-related structural changes is crucial for understanding their effects in biological functions.With the explosive numbers of experimentally determined protein structures,more and more wild-type-mutant structures have been used in comparable studies of structural biology.In this work,we constructed a structure-pair database,named DRSP,which collected non-redundant pairs of proteins with single residue substitutions in the entire Protein Data Bank.DRSP demonstrates abundant information for mutant-structure prediction and protein design.More importantly,DRSP presents the superimposed pairs of wild-type-mutant structures for backbone-perturbation studies,which are very important for the highly accurate structure modeling.DRSP is available at http：//www.labshare.cn/drsp/index.php.