Coordination of ubiquinol oxidase and cytochrome cbb(3) oxidase expression by multiple regulators in Rhodobacter capsulatus.
Rhodobacter capsulatus utilizes two terminal oxidases for aerobic respiration, cytochrome cbb(3) and ubiquinol oxidase. To determine the transcription factors involved in terminal oxidase expression, ccoN-lacZ and cydA-lacZ protein fusions were assayed in a variety of regulatory mutants. The results of this and previous studies indicate that cytochrome cbb(3) expression is controlled by regB-regA, fnrL, and hvrA and that ubiquinol oxidase expression is controlled by regB-regA, fnrL, hvrA, crtJ, and aerR.
Swem
Danielle L
DL
Department of Biology, Jordan Hall, Indiana University, Bloomington, IN 47405, USA.
Bauer
Carl E
CE
D003576:Electron Transport Complex IV / Q000235:genetics*; D015964:Gene Expression Regulation, Bacterial; D015971:Gene Expression Regulation, Enzymologic; D010088:Oxidoreductases / Q000235:genetics*; D016354:Rhodobacter capsulatus / Q000201:enzymology*; D014157:Transcription Factors / Q000502:physiology
D014157:Transcription Factors; D010088:Oxidoreductases; C432586:ubiquinol oxidase; C414443:cbb3 oxidase; D003576:Electron Transport Complex IV