Hydroxylamine (NH<sub>2</sub>OH) is a strongly reducing precursor to nitrous oxide (N<sub>2</sub>O), a potent greenhouse gas formed by bacteria in soil and wastewater. Bacterial iron-containing heme proteins, including cytochrome P460 and hydroxylamine oxidoreducatse, have been shown to play key roles in the oxidation of hydroxylamine. As a first step towards defining structure-reactivity relationships in hydroxylamine metabolism, UV-Visible absorption spectroscopy was used to characterize hydroxylamine reactivity with a range of mammalian and bacterial heme proteins in different redox states.

Hydroxylamine reactivity with heme proteins

255th National Meeting (2018)

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