PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19722697-3 2009 This C-terminal domain contains a pair of redox active cysteines and demonstrates thioredoxin-like activity by both binding to and mediating persulfide bond cleavage of sulfur-loaded IscS, the sulfide donor for [2Fe-2S] cluster assembly on ISU-type scaffold proteins. Cysteine 55-64 NFS1 cysteine desulfurase Homo sapiens 183-187