... well as the isolated catalytic a domain of PDI. Boththe PDI a domain and DsbA have a catalytic site, withan associated substrate-binding site, but lack an inde-pendent substrate-binding site, ... 2010 The Authors Journal compilation ª 2010 FEBSbacitracin contains at least nine different peptides, ofwhich bacitracin A is the most abundant, and it is mainly used as an antibiotic against ... Instead, bacitracin can also interact withfolding polypeptide chains and other molecular chaper-ones and folding catalysts. Bacitracin probably inter-acts with these, and with PDI, via its...