PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34154323-1 2021 All radical S-adenosylmethionine (radical-SAM) enzymes, including the noncanonical radical-SAM enzyme diphthamide biosynthetic enzyme Dph1-Dph2, require at least one (4Fe-4S)(Cys)3 cluster for activity. S-Adenosylmethionine 12-32 2-(3-amino-3-carboxypropyl)histidine synthase Saccharomyces cerevisiae S288C 134-138