6jn3

Serine Beta-Lactamase KPC-2 in Complex with Dual MBL/SBL Inhibitor MS05

spinqualitylabelsall models 6jn3, resolution 2.22Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6jn3 is a 4 chain structure with sequence from Klebsiella pneumoniae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.216Å Ligands: ACY, BX6, PEG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function BLKPC_KLEPN Hydrolyzes carbapenems, penicillins, cephalosporins and monobactams with varying efficiency. Publication Abstract from PubMed The emergence and spread of bacterial pathogens acquired both metallo-beta-lactamase (MBL) and serine-beta-lactamase (SBL) medicated beta-lactam resistance gives rise to an urgent need for the development of new dual-action MBL/SBL inhibitors. Application of a pharmacophore fusion strategy led to the identification of (2'S)-(1-(3'-mercapto-2'-methylpropanamido)methyl)boronic acid (MS01) as a new dual-action inhibitor, which manifests broad-spectrum inhibition to representative MBL/SBL enzymes, including the widespread VIM-2 and KPC-2. Guided by the VIM-2:MS01 and KPC-2:MS01 complex structures, further structural optimization yielded new more potent dual-action inhibitors. Selectivity studies indicated that the inhibitors had no apparent inhibition to human angiotensin-converting enzyme-2, and showed selectivity across serine hydrolyases in E. coli and human HEK293T cells labeled by the activity-based probe TAMRA-FP. Moreover, the inhibitors displayed potentiation of meropenem efficacy against MBL- or SBL-positive clinical isolates without apparent cytotoxicity. This work will aid efforts to develop new types of clinically useful dual-action inhibitors targeting MBL/SBL enzymes. Structure-Based Development of (1-(3'-Mercaptopropanamido)methyl)boronic Acid Derived Broad-Spectrum, Dual-Action Inhibitors of Metallo- and Serine-beta-Lactamases.,Wang YL, Liu S, Yu ZJ, Lei Y, Huang MY, Yan YH, Ma Q, Zheng Y, Deng H, Sun Y, Wu C, Yu Y, Chen Q, Wang Z, Wu Y, Li GB J Med Chem. 2019 Jul 3. doi: 10.1021/acs.jmedchem.9b00735. PMID:31269398 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Beta-lactamase 3D structures

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