Fig. 1
From: In the picture: disulfide-poor conopeptides, a class of pharmacologically interesting compounds
Pathway of contryphan formation. It is presumed that bromination precedes the final proteolytic cleavage. The presence of two non-brominated forms, contryphan and [des-Gly1]contryphan, in native venom may be due to incomplete post-translational processing with the [des-Gly1]analog arising from a non-physiological post-mortem proteolysis. Reprinted with permission from Jimenez et al. [21]. Copyright by the American Chemical Society (1997)