Defects in a quinol oxidase lead to loss of KatC catalase activity in Pseudomonas aeruginosa: KatC activity is temperature dependent and it requires an intact disulphide bond formation system.

Abstract excerpt

Mutation or overexpression of the cyanide-insensitive terminal oxidase (CIO) of Pseudomonas aeruginosa leads to temperature-sensitivity, multiple antibiotic sensitivity, and abnormal cell division and failure to produce a temperature-inducible catalase [G.R. Tavankar, D. Mossialos, H.D. Williams, Mutation or overexpression of a terminal oxidase leads to a cell division defect and multiple antibiotic sensitivity...

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