3VQZ:
reference: Structural insights into the subclass B3 metallo-beta-lactamase SMB-1 and the mode of inhibition by the common metallo-beta-lactamase inhibitor mercaptoacetate., Wachino J, Yamaguchi Y, Mori S, Kurosaki H, Arakawa Y, Shibayama K, Antimicrob Agents Chemother. 2013 Jan;57(1):101-9. doi: 10.1128/AAC.01264-12., Epub 2012 Oct 15. PMID: 23070156

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