The temperature-sensitive growth and survival phenotypes of Escherichia coli cydDC and cydAB strains are due to deficiencies in cytochrome bd and are corrected by exogenous catalase and reducing agents.

Abstract excerpt

The cydDC operon of Escherichia coli encodes an ATP-dependent transporter of unknown function that is required for cytochrome bd synthesis. Strains containing defects in either the cydD or cydC gene also demonstrate hypersensitivity to growth at high temperatures and the inability to exit the sta...

Topics

• ATP-Binding Cassette Transporters
• Catalase
• Cytochrome b Group
• Cytochromes
• Electron Transport Chain Complex Proteins
• Escherichia coli
• Escherichia coli Proteins
• Gene Expression Regulation, Bacterial
• Oxidoreductases
• Phenotype