ID   1.6.3.3
DE   NADH oxidase (H2O2-forming).
AN   H2O2-forming NADH oxidase.
CA   H(+) + NADH + O2 = H2O2 + NAD(+).
CC   -!- The bacterium Streptococcus mutans contains two distinct NADH
CC       oxidases, a H2O2-forming enzyme and a H2O-forming enzyme (cf.
CC       EC 1.6.3.4).
CC   -!- The enzymes from the anaerobic archaea Methanocaldococcus jannaschii
CC       and Pyrococcus furiosus also produce low amounts of H2O.
CC   -!- Unlike EC 1.6.3.1 it has no activity toward NADPH.
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