Instead, it has glucose attached to one of its five cysteine thiols, making it an S-linked glycopeptide. Few S-linked glycopeptides have been discovered, but protein database searches suggest sublancin isn’t a fluke—it appears to be part of a family of yet to be studied peptides. “You’d think that by 2010, many of these peptides would have been found, but maybe we weren’t looking for the right things,” van der Donk says.
by Carmen Drahl |
January 03, 2011