PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11771135-3 2001 If the main electrogenic stage of the Q cycle is suggested to be the electron transfer between the cytochrome b hemes, then the rate of superoxide generation sharply increases when delta psi grows from 150 mV to 180 mV. Superoxides 136-146 mitochondrially encoded cytochrome b Homo sapiens 99-111