4IXW:
reference: Biocatalytic and structural properties of a highly engineered halohydrin dehalogenase., Schallmey M, Floor RJ, Hauer B, Breuer M, Jekel PA, Wijma HJ, Dijkstra BW, Janssen DB, Chembiochem. 2013 May 10;14(7):870-81. doi: 10.1002/cbic.201300005. Epub 2013 Apr, 12. PMID: 23585096

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