Four sequence motifs of methyl parathion hydrolase OPHC2 have been found by sequence local alignment,structure-based sequence alignment and the analysis of substitution patterns of residues.

• 将氨基酸的多序列局部比对、基于结构的序列比对和氨基酸替换忍耐性分析等方法联合起来对甲基对硫磷水解酶OPHC2进行了序列分析,确定出4组保守性功能序列。