PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12387936-0 2002 Porphyrinogenic xenobiotic-induced N-alkylprotoporphyrin IX formation: a bioassay utilizing chick embryo hepatic ferrochelatase. n-alkylprotoporphyrin ix 35-59 ferrochelatase Gallus gallus 113-127 3664364-1 1987 The ferrochelatase-lowering activity of 3,5-diethoxycarbonyl-1,4-dihydro-2,4,6-trimethylpyridine (DDC) analogues in chick embryo hepatocyte culture has been assumed to be due to the formation of an N-alkylprotoporphyrin IX. n-alkylprotoporphyrin ix 198-222 ferrochelatase Gallus gallus 4-18