Summary of peptidases in B. xylophilus and other nematodes.

According to Merops, the proteins classified by catalytic types: aspartic (Asp), cystein (Cys), metallo (Metal), serine (Ser) and threonin (Thr). Numbers of proteins in which all conserved catalytic residues found are shown in parentheses.*Isoforms from one gene were counted only once.基于Merops数据库，蛋白质按催化类型分为天冬氨酸（Asp）、半胱氨酸（Cys）、金属（Metal）、丝氨酸（Ser）与苏氨酸（Thr）五类。所有保守催化残基均被检出的蛋白质数量以括号标注。*同一基因的同工型仅计数一次。