3SH9:
reference: Increased structural flexibility at the active site of a fluorophore-conjugated beta-lactamase distinctively impacts its binding toward diverse cephalosporin antibiotics., Wong WT, Chan KC, So PK, Yap HK, Chung WH, Leung YC, Wong KY, Zhao Y, J Biol Chem. 2011 Sep 9;286(36):31771-80. Epub 2011 Jun 23. PMID: 21705325

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