4-Amino-2-Sulfanylbenzoic Acid as a Potent Subclass B3 Metallo-β-Lactamase-Specific Inhibitor Applicable for Distinguishing Metallo-β-Lactamase Subclasses

Abstract excerpt

cells producing SMB-1, as the meropenem (MEM) MIC for the SMB-1 producer was only slightly reduced with TSA. We then introduced a primary amine to TSA and synthesized 4-amino-2-sulfanylbenzoic acid (ASB), which substantially reduced the MEM MICs for SMB-1 producers. X-ray crystallographic analyses revealed that ASB binds to the two zinc ions, Ser221, and Thr223 at the active site of SMB-1. These are ubiquitously...

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