PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21945528-3 2011 We were able to experimentally confirm a role of Fdx1 in the iron-sulfur cluster biosynthesis by in vitro reduction studies with cluster-loaded So ce56 IscU and by transfer studies of the cluster from the latter protein to apo-aconitase A. Iron 61-65 iron-sulfur cluster assembly enzyme Homo sapiens 152-156