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. 2011 Dec 16;4(2):184–198. doi: 10.1093/gbe/evr137

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© The Author(s) 2011. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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FIG. 9.— — Benzoquinone reductases have been recruited from three different superfamilies in microorganisms degrading PCP (Sphingobium chlorophenolicum), 2,4,6-trichlorophenol (Cupriavidus necator JMP134), p-nitrophenol (Pseudomonas sp. Strain WBC-3), and o-nitrophenol (Alcaligenes sp. strain NyZ215). The benzoquinones shown (from top to bottom) result from hydroxylation of a phenol at a position bearing a chlorine atom (for PCP and 2,4,6-trichlorophenol) or a nitro group (for p- and o-nitrophenol).