PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6811590-4 1982 In systems containing cytochrome and reductase, the rate of NADH oxidation exceeded that of NADPH oxidation, indicating that reduced cytochrome b5 is an effective electron donor for prostaglandin H2 formation, enhancing both the initial rate and the extent of the reaction. NAD 60-64 cytochrome b5 type A Homo sapiens 133-146