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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Mol Microbiol. 2016 May 2;101(1):62–77. doi: 10.1111/mmi.13372

Figure 5. Sulfide directly inhibits cytochrome bo oxidase in isolated vesicles.

Figure 5

Vesicles were prepared from wild-type, ΔcydAB, and ΔcyoABCDE strains. A. NADH oxidation was measured in vitro in the absence or presence of 8 μM sulfide. B. Normalized NADH oxidation rates. Where indicated, 8 μM sulfide or 2 mM cysteine were added.