The baculum, a bone in the penis of many mammal species, shows an astonishing level of morphological divergence between species. Despite hundreds of years of interest, biologists have been unable to d
PawS1 (Preproalbumin with SFTI 1) shows an unusual biosynthesis where a small trypsin-inhibitory cyclide peptide, SFTI 1 (Sunflower Trypsin Inhibitor 1) is buried within a napin-type 2S albumin protei