4J1N
Crystal structures of FabI from F. tularensis in complex with novel inhibitors based on the benzimidazole scaffold
Summary for 4J1N
| Entry DOI | 10.2210/pdb4j1n/pdb |
| Related | 3UIC 4J3F 4J4T |
| Descriptor | Enoyl-[acyl-carrier-protein] reductase [NADH], NICOTINAMIDE-ADENINE-DINUCLEOTIDE, 1-(4-methoxy-3-methylbenzyl)-1,5,6,7-tetrahydroindeno[5,6-d]imidazole, ... (5 entities in total) |
| Functional Keywords | rossmann fold, reductase, nadh, reduction, oxidoreductase-oxidoreductase inhibitor complex, oxidoreductase/oxidoreductase inhibitor |
| Biological source | Francisella tularensis subsp. tularensis |
| Total number of polymer chains | 2 |
| Total formula weight | 62016.82 |
| Authors | Mehboob, S.,Boci, T.,Brubaker, L.,Santarsiero, B.D.,Johnson, M.E. (deposition date: 2013-02-01, release date: 2014-07-23, Last modification date: 2023-09-20) |
| Primary citation | Mehboob, S.,Song, J.,Hevener, K.E.,Su, P.C.,Boci, T.,Brubaker, L.,Truong, L.,Mistry, T.,Deng, J.,Cook, J.L.,Santarsiero, B.D.,Ghosh, A.K.,Johnson, M.E. Structural and biological evaluation of a novel series of benzimidazole inhibitors of Francisella tularensis enoyl-ACP reductase (FabI). Bioorg.Med.Chem.Lett., 25:1292-1296, 2015 Cited by PubMed Abstract: Francisella tularensis, the causative agent of tularemia, presents a significant biological threat and is a Category A priority pathogen due to its potential for weaponization. The bacterial FASII pathway is a viable target for the development of novel antibacterial agents treating Gram-negative infections. Here we report the advancement of a promising series of benzimidazole FabI (enoyl-ACP reductase) inhibitors to a second-generation using a systematic, structure-guided lead optimization strategy, and the determination of several co-crystal structures that confirm the binding mode of designed inhibitors. These compounds display an improved low nanomolar enzymatic activity as well as promising low microgram/mL antibacterial activity against both F. tularensis and Staphylococcus aureus and its methicillin-resistant strain (MRSA). The improvements in activity accompanying structural modifications lead to a better understanding of the relationship between the chemical structure and biological activity that encompasses both enzymatic and whole-cell activity. PubMed: 25677657DOI: 10.1016/j.bmcl.2015.01.048 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.45 Å) |
Structure validation
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