Catalase A

UniProtKB accession:  O52762

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UniProtKB description:  The major expressed catalase protein in strain PAO1 in stationary phase (PubMed:10368148). Decomposes H(2)O(2) into water and oxygen; serves to protect cells from the toxic effects of H(2)O(2) (PubMed:10368148). May facilitate the transition from anaerobic to aerobic growth (which occurs during biofilm dispersion in infected patients) (PubMed:24663218). Binds nitric oxide (NO), protecting cells against this intermediate generated during anaerobic respiration (PubMed:24663218).