7dz1

Crystal structure of VIM-2 MBL in complex with 1-benzyl-5-methyl-1H-imidazole-2-carboxylic acid

spinqualitylabelsall models 7dz1, resolution 2.71Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7dz1 is a 2 chain structure with sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.708Å Ligands: HQ3, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q9K2N0_PSEAI Publication Abstract from PubMed Production of metallo-beta-lactamases (MBLs) in bacterial pathogens is an important cause of resistance to the 'last-resort' carbapenem antibiotics. Development of effective MBL inhibitors to reverse carbapenem resistance in Gram-negative bacteria is still needed. We herein report X-ray structure-guided optimization of 1H-imidazole-2-carboxylic acid (ICA) derivatives by considering how to engage with the active-site flexible loops and improve penetration into Gram-negative bacteria. Structure-activity relationship studies revealed the importance of appropriate substituents at ICA 1-position to achieve potent inhibition to class B1 MBLs, particularly the Verona Integron-encoded MBLs (VIMs), mainly by involving ingenious interactions with the flexible active site loops as observed by crystallographic analyses. Of the tested ICA inhibitors, 55 displayed potent synergistic antibacterial activity with meropenem against engineered Escherichia coli strains and even intractable clinically isolated Pseudomonas aeruginosa producing VIM-2 MBL. The morphologic and internal structural changes of bacterial cells after treatment further demonstrated that 55 crossed the outer membrane and reversed the activity of meropenem. Moreover, 55 showed good pharmacokinetic and safety profile in vivo, which could be a potential candidate for combating VIM-mediated Gram-negative carbapenem resistance. Structure-guided optimization of 1H-imidazole-2-carboxylic acid derivatives affording potent VIM-Type metallo-beta-lactamase inhibitors.,Yan YH, Li W, Chen W, Li C, Zhu KR, Deng J, Dai QQ, Yang LL, Wang Z, Li GB Eur J Med Chem. 2022 Jan 15;228:113965. doi: 10.1016/j.ejmech.2021.113965. Epub, 2021 Nov 2. PMID:34763944 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Beta-lactamase 3D structures

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