PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2860872-12 1985 Inactivation of glutamine synthetase by either of these flavoproteins is greatly stimulated by the presence of electron carrier proteins possessing nonheme-iron-sulfur (NHIS) clusters (i.e., ferredoxin or putidaredoxin) or by the presence of menadione. ferrous sulfide 156-167 glutamate-ammonia ligase Homo sapiens 16-36