2VWS:
reference: Crystal Structure and Functional Assignment of YfaU, a Metal Ion Dependent Class II Aldolase from Escherichia coli K12., Rea D, Hovington R, Rakus JF, Gerlt JA, Fulop V, Bugg TD, Roper DI, Biochemistry. 2008 Aug 29. PMID: 18754683

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