2WYM:
reference: Molecular Architecture of the Mn(2)(+)-dependent Lactonase UlaG Reveals an RNase-like Metallo-beta-lactamase Fold and a Novel Quaternary Structure., Garces F, Fernandez FJ, Montella C, Penya-Soler E, Prohens R, Aguilar J, Baldoma L, Coll M, Badia J, Vega MC, J Mol Biol. 2010 Mar 30. PMID: 20359483

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