ISDA

Deposition Date 2014-01-28

Release Date 2014-02-12

Last Version Date 2023-12-20

Entry Detail

PDB ID:

4COD

Keywords:

TRANSFERASE

Title:

Encoded library technology as a source of hits for the discovery and lead optimization of a potent and selective class of bactericidal direct inhibitors of Mycobacterium tuberculosis InhA

Biological Source:

Source Organism:

MYCOBACTERIUM TUBERCULOSIS (Taxon ID: 1773)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:ENOYL-[ACYL-CARRIER-PROTEIN] REDUCTASE [NADH]
Chain IDs:A (auth: B), B (auth: D), C (auth: F), D (auth: H)
Chain Length:269
Number of Molecules:4
Biological Source:MYCOBACTERIUM TUBERCULOSIS

UniProt ID:P9WGR1 Pfam ID:PF13561

Ligand Molecules

KV1

NAD

Primary Citation

Encoded Library Technology as a Source of Hits for the Discovery and Lead Optimization of a Potent and Selective Class of Bactericidal Direct Inhibitors of Mycobacterium Tuberculosis Inha.

Encinas, L, O'Keefe, H, Neu, M, Remuinan, M.J, Patel, A.M, Guardia, A, Davie, C.P, Perez-Macias, N, Yang, H, Convery, M.A, Messer, J.A, Perez-Herran, E, Centrella, P.A, Alvarez-Gomez, D, Clark, M.A, Huss, S, O'Donovan, G.K, Ortega-Muro, F, Mcdowell, W, Castaneda, P, Arico-Muendel, C.C, Pajk, S, Rullas, J, Angulo-Barturen, I, Alvarez-Ruiz, E, Mendoza-Losana, A, Pages, L.B, Castro-Pichel, J, Evindar, G.Show

J.Med.Chem. 57 1276 ? (2014)

PMID: 24450589 DOI: 10.1021/JM401326J

Abstact

Tuberculosis (TB) is one of the world's oldest and deadliest diseases, killing a person every 20 s. InhA, the enoyl-ACP reductase from Mycobacterium tuberculosis, is the target of the frontline antitubercular drug isoniazid (INH). Compounds that directly target InhA and do not require activation by mycobacterial catalase peroxidase KatG are promising candidates for treating infections caused by INH resistant strains. The application of the encoded library technology (ELT) to the discovery of direct InhA inhibitors yielded compound 7 endowed with good enzymatic potency but with low antitubercular potency. This work reports the hit identification, the selected strategy for potency optimization, the structure-activity relationships of a hundred analogues synthesized, and the results of the in vivo efficacy studies performed with the lead compound 65.

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Primary Citation of related structures