Requirement for terminal cytochromes in generation of the aerobic signal for the arc regulatory system in Escherichia coli: study utilizing deletions and lac fusions of cyo and cyd.

Abstract excerpt

Escherichia coli has two terminal oxidases for its respiratory chain: cytochrome o (low O2 affinity) and cytochrome d (high O2 affinity). Expression of the cyo operon, encoding cytochrome o, is decreased by anaerobic growth, whereas expression of the cyd operon, encoding cytochrome d, is increase...

Topics

• Aerobiosis
• Bacteriophage lambda
• Cytochrome b Group
• Cytochrome d Group
• Cytochromes
• Escherichia coli
• Escherichia coli Proteins
• Genes, Regulator
• Genotype
• Models, Biological
• Oxygen Consumption