申请人:The Australian National University
公开号:EP2631241A2
公开(公告)日:2013-08-28
A method of generating a protein with an improved functional property, the method comprising: (a) identifying at least one Target amino acid Residue in a first protein, wherein said Target amino acid Residue is associated with said functional property; (b) comparing at least one homologous second protein from the same or a different phylogenetic branch as the first protein with the first protein and identifying at least one Variant amino acid Residue between the first protein and the second protein; (c) selecting at least one Candidate amino acid Residue from the Variant amino acid Residue identified in (b) on the basis of said Candidate amino acid Residue affecting said Target amino acid Residue with respect to said functional property; (d) forming at least one Candidate Mutant protein in silico or producing at least one Candidate Mutant protein in vitro in which said at least one Candidate amino acid Residue from the second protein substitutes a corresponding residue in the first protein; and (e) screening said at least one Candidate Mutant protein produced in (d) to identify a protein having said improved functional property.
一种生成具有改进功能特性的蛋白质的方法,该方法包括(a) 识别第一种蛋白质中的至少一个目标氨基酸残基,其中所述目标氨基酸残基与所述功能特性相关; (b) 将与第一种蛋白质来自相同或不同系统发育分支的至少一个同源第二种蛋白质与第一种蛋白质进行比较,并识别第一种蛋白质与第二种蛋白质之间的至少一个变异氨基酸残基;(c) 根据所述候选氨基酸残基在所述功能特性方面对所述目标氨基酸残基的影响,从(b)中确定的变异氨基酸残基中选择至少一个候选氨基酸残基;(d) 在硅学中形成至少一种候选突变蛋白,或在体外产生至少一种候选突变蛋白,其中第二种蛋白中的至少一种候选氨基酸残基取代第一种蛋白中的相应残基;以及 (e) 筛选(d)中产生的至少一种候选突变蛋白,以鉴定出具有所述改进功能特性的蛋白。