3S2Y:
reference: Structure Determination and Functional Analysis of a Chromate Reductase from Gluconacetobacter hansenii., Jin H, Zhang Y, Buchko GW, Varnum SM, Robinson H, Squier TC, Long PE, PLoS One. 2012;7(8):e42432. Epub 2012 Aug 6. PMID: 22879982

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