PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10813095-4 2000 However, the rate of iron uptake from 55Fe-ferric citrate by PI-PLC-treated HeLa cells was comparable or only slightly lower (80-100%) than the rate of iron uptake by untreated cells. ferric citrate 43-57 phospholipase C beta 1 Homo sapiens 61-67