PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8351413-5 1993 DDC, a porphyrinogenic agent, caused marked and prolonged increase in the activity of delta-ALA synthetase in EHBR. Zalcitabine 0-3 5'-aminolevulinate synthase 1 Rattus norvegicus 86-106