5VRN
CRYSTAL STRUCTURE OF THE INHA FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH AN12855, EBSI 4333.
Summary for 5VRN
| Entry DOI | 10.2210/pdb5vrn/pdb |
| Related | 5VRL 5VRM |
| Descriptor | Enoyl-[acyl-carrier-protein] reductase [NADH], [[(2~{R},3~{S},4~{R},5~{R})-5-(3-aminocarbonylpyridin-1-ium-1-yl)-4-[[5-[4-cyano-2-[(~{E})-hydroxyiminomethyl]phenoxy]-1-oxidanyl-3~{H}-2,1$l^{4}-benzoxaborol-1-yl]oxy]-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] [(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl hydrogen phosphate (3 entities in total) |
| Functional Keywords | inha, enoyl-acyl reductase, tuberculosis, oxidoreductase |
| Biological source | Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh) |
| Total number of polymer chains | 6 |
| Total formula weight | 178767.31 |
| Authors | Abendroth, J.,Edwards, T.E.,Lorimer, D. (deposition date: 2017-05-11, release date: 2018-05-16, Last modification date: 2024-03-13) |
| Primary citation | Xia, Y.,Zhou, Y.,Carter, D.S.,McNeil, M.B.,Choi, W.,Halladay, J.,Berry, P.W.,Mao, W.,Hernandez, V.,O'Malley, T.,Korkegian, A.,Sunde, B.,Flint, L.,Woolhiser, L.K.,Scherman, M.S.,Gruppo, V.,Hastings, C.,Robertson, G.T.,Ioerger, T.R.,Sacchettini, J.,Tonge, P.J.,Lenaerts, A.J.,Parish, T.,Alley, M. Discovery of a cofactor-independent inhibitor ofMycobacterium tuberculosisInhA. Life Sci Alliance, 1:e201800025-e201800025, 2018 Cited by PubMed Abstract: New antitubercular agents are needed to combat the spread of multidrug- and extensively drug-resistant strains of . The frontline antitubercular drug isoniazid (INH) targets the mycobacterial enoyl-ACP reductase, InhA. Resistance to INH is predominantly through mutations affecting the prodrug-activating enzyme KatG. Here, we report the identification of the diazaborines as a new class of direct InhA inhibitors. The lead compound, AN12855, exhibited in vitro bactericidal activity against replicating bacteria and was active against several drug-resistant clinical isolates. Biophysical and structural investigations revealed that AN12855 binds to and inhibits the substrate-binding site of InhA in a cofactor-independent manner. AN12855 showed good drug exposure after i.v. and oral delivery, with 53% oral bioavailability. Delivered orally, AN12855 exhibited dose-dependent efficacy in both an acute and chronic murine model of tuberculosis infection that was comparable with INH. Combined, AN12855 is a promising candidate for the development of new antitubercular agents. PubMed: 30456352DOI: 10.26508/lsa.201800025 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.55 Å) |
Structure validation
Download full validation report
