ID   7.1.1.7
DE   ubiquinol oxidase (electrogenic, proton-motive force generating).
AN   cytochrome bd-I oxidase.
CA   2 a ubiquinol + 4 H(+)(in) + O2(in) = 2 a ubiquinone + 4 H(+)(out) +
CA   2 H2O(in).
CC   -!- This terminal oxidase enzyme is unable to pump protons but generates
CC       a proton motive force by transmembrane charge separation resulting
CC       from utilizing protons and electrons originating from opposite sides
CC       of the membrane to generate water.
CC   -!- The bioenergetic efficiency (the number of charges driven across the
CC       membrane per electron used to reduce oxygen to water) is 1.
CC   -!- The bd-I oxidase from the bacterium Escherichia coli is the
CC       predominant respiratory oxygen reductase that functions under
CC       microaerophilic conditions in that organism. cf. EC 7.1.1.3.
CC   -!- Formerly EC 1.10.3.14.
DR   Q09049, CYDA_AZOVI ;  P94364, CYDA_BACSU ;  P0ABK0, CYDA_ECOL6 ;
DR   P0ABJ9, CYDA_ECOLI ;  P0ABK1, CYDA_SHIFL ;  P94365, CYDB_BACSU ;
DR   P0ABK4, CYDB_ECO57 ;  P0ABK3, CYDB_ECOL6 ;  P0ABK2, CYDB_ECOLI ;
DR   Q2YKD6, CYDX_BRUA2 ;  P56100, CYDX_ECOLI ;
//