3r5r

Structural highlights

Function

DDN_MYCTU Nitroreductase involved in the bioreductive activation of the antitubercular prodrug PA-824 (nitroimidazo-oxazine) developed for anti-tuberculosis therapy against both replicating and persistent bacteria. It converts PA-824 into three primary metabolites; the major one is the des-nitroimidazole (des-nitro) which generated reactive nitrogen species, including nitric oxide (NO). Reactive nitrogen species play a major role in mammalian defense against mycobacterial infections.^{[1] [2]}

See Also

• Nitroreductase 3D structures

References

1. ↑ Manjunatha UH, Boshoff H, Dowd CS, Zhang L, Albert TJ, Norton JE, Daniels L, Dick T, Pang SS, Barry CE 3rd. Identification of a nitroimidazo-oxazine-specific protein involved in PA-824 resistance in Mycobacterium tuberculosis. Proc Natl Acad Sci U S A. 2006 Jan 10;103(2):431-6. Epub 2005 Dec 30. PMID:16387854 doi:http://dx.doi.org/10.1073/pnas.0508392103
2. ↑ Singh R, Manjunatha U, Boshoff HI, Ha YH, Niyomrattanakit P, Ledwidge R, Dowd CS, Lee IY, Kim P, Zhang L, Kang S, Keller TH, Jiricek J, Barry CE 3rd. PA-824 kills nonreplicating Mycobacterium tuberculosis by intracellular NO release. Science. 2008 Nov 28;322(5906):1392-5. doi: 10.1126/science.1164571. PMID:19039139 doi:http://dx.doi.org/10.1126/science.1164571