PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 629746-2 1978 The corresponding porphyrinogen was used as substrate in a specific sensitive assay for coproporphyrinogen oxidase (EC 1.3.3.3) in which the rate of production of 14CO2 is measured. 14co2 163-168 coproporphyrinogen oxidase Rattus norvegicus 88-114