4YWO:
reference: Biochemical and Structural Properties of a Thermostable Mercuric Ion Reductase from Metallosphaera sedula., Artz JH, White SN, Zadvornyy OA, Fugate CJ, Hicks D, Gauss GH, Posewitz MC, Boyd ES, Peters JW, Front Bioeng Biotechnol. 2015 Jul 13;3:97. doi: 10.3389/fbioe.2015.00097., eCollection 2015. PMID: 26217660

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