Fig. 1

Schematics of domain architectures of main types of F-box proteins from six Caenorhabditis species. F-box gene family member representatives with different N terminal functional domains are shown. The C terminal black convex box represents the F-box domain that binds Cullins, and the N terminal blue rectangle and purple pentagon represent F-box associated region 2 (FBA2) and FTH respectively that bind substrate. C terminal known functional domains except FBA2 and FTH were referred to as ‘Others’ that were observed only a few F-box proteins. The numbers represent the count of a particular type of domain in the corresponding species