Escherichia coli Cytochrome c Nitrite Reductase NrfA

TA Clarke, PC Mills, SR Poock, JN Butt, MR Cheesman, Jeffrey Cole, JCD Hinton, AM Hemmings, G Kemp, CAG Soderberg, S Spiro, J Van Wonderen, DJ Richardson, RK Poole

Research output: Chapter in Book/Report/Conference proceedingChapter

28 Citations (Scopus)

Abstract

The periplasmic cytochrome c nitrite reductase (Nrf) system of Escherichia coli utilizes nitrite as a respiratory electron acceptor by reducing it to ammonium. Nitric oxide (NO) is a proposed intermediate in this six-electron reduction and NrfA can use exogenous NO as a substrate. This chapter describes the method used to assay Nrf-catalyzed NO reduction in whole cells of E. coli and the procedures for preparing highly purified NrfA suitable for use in kinetic, spectroscopic, voltammetric, and crystallization studies.
Original languageEnglish
Title of host publicationMethods in Enzymology
Volume437
DOIs
Publication statusPublished - 1 Jan 2008

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