PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21481187-7 2011 Here, we show, by MALDI-TOF/TOF MS, a direct interaction of bacitracin with PDI, involving disulfide bond formation between an open thiol form of the bacitracin thiazoline ring and cysteines in the substrate-binding domain of PDI. thiazoline 161-171 prolyl 4-hydroxylase subunit beta Homo sapiens 76-79