Mycobacterium tuberculosis cysteine biosynthesis genes mec+-cysO-cysM confer resistance to clofazimine
2019
Abstract The Mycobacterium tuberculosis mec +- cysO-cysM gene cluster was shown to be part of a novel cysteine biosynthesis pathway in vitro, but little is known about its essentiality or role in M. tuberculosis physiology. In this study, we generate a knock out of the mec +- cysO-cysM gene cluster in M. tuberculosis and show that the gene cluster is not essential under a variety of conditions, suggesting redundancy in pathways for cysteine biosynthesis in M. tuberculosis . The cysteine biosynthesis gene cluster is essential for resistance for clofazimine, a peroxide-producing anti-leprosy drug. Therefore, although under most conditions the pathway is not essential, it likely has an important role in defense against oxidative stress in M. tuberculosis .
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
23
References
4
Citations
NaN
KQI