Bacterial Nitric-oxide Synthases Operate without a Dedicated Redox Partner

Abstract excerpt

Bacterial nitric-oxide (NO) synthases (bNOSs) are smaller than their mammalian counterparts. They lack an essential reductase domain that supplies electrons during NO biosynthesis. This and other structural peculiarities have raised doubts about whether bNOSs were capable of producing NO in vivo. Here we demonstrate that bNOS enzymes from Bacillus subtilis and Bacillus anthracis do indeed produce NO in living...

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