Figure 4.
Threaded cloacaenodin is resistant to proteolysis while the unthreaded conformer is proteolyzed into the major products shown. Loop/tail residues are colored green and ring residues are colored orange. Phe22 and Tyr23 are enlarged to denote their role as the steric lock residues for cloacaenodin. The LC-MS data underlying this schematic are shown in Figure S13-S16.