A cell-permeable, orally available, highly lipophilic 4-hydroxy-2-pyridone derivative that directly binds to the enoyl-substrate binding pocket of Mycobaterial enoyl reductase inhA in an NADH-dependent manner and inhibits its activity (IC50 = 570 nM). Shown to be about 5 to 8 times more potent ((MIC50 = 40 to 160 nM in multi-drug resistant strains of Mycobacterium) than isoniazid (MIC50 = 330 nM) and PA-824 (MIC50 = 400 nM). Exhibits in vivo efficacy in acute and established mouse models of Mycobacterium tuberculosis infection. Exhibits low to moderate metabolic clearance in mouse and human hepatic microsomes. Suggested to inhibit the fatty acid elongation step that blocks the biosynthesis of mycolic acids and weakens the cell wall mycolyl-arabinogalactan-peptidoglycan complex, and ultimately lysis of Mycobacterium.
Please note that the molecular weight for this compound is batch-specific due to variable water content. Please refer to the vial label or the certificate of analysis for the batch-specific molecular weight. The molecular weight provided represents the baseline molecular weight without water.
Biochem/physiol Actions
Primary Target InhA
Packaging
Packaged under inert gas
Warning
Toxicity: Regulatory Review (Z)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
Other Notes
Manjunatha, U., et al. 2015. Sci. Trans. Med.7, 269.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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