Mycobacterial membrane and energy metabolism

Mycobacterial membrane and energy metabolism refers to the integrated biochemical systems responsible for maintaining the structural integrity of the mycobacterial cell envelope and the production of cellular energy via oxidative phosphorylation. The mycobacterial cell wall is uniquely complex, featuring a thick layer of mycolic acids that provides a formidable barrier against antibiotics and host immune responses (Brennan & Nikaido, 1995, Annual Review of Biochemistry). Energy metabolism in Mycobacterium tuberculosis is highly flexible, allowing the pathogen to survive in various physiological states, including dormancy within host granulomas (Cook et al., 2014, Advances in Microbial Physiology). Key components of this system include the ATP synthase complex, targeted by bedaquiline (Andries et al., 2005, Nature), and the cytochrome bcc complex, targeted by telacebec (Pethe et al., 2013, Nature Medicine). Additionally, the transport of cell wall components via proteins like MmpL3 is vital for membrane integrity and is a focus of modern drug development (Grzegorzewicz et al., 2012, Nature Chemical Biology). Disrupting these metabolic and structural processes leads to bacterial cell death or increased susceptibility to other agents, making them central to tuberculosis therapy.

Other names

Mycobacterial cell envelope and bioenergeticsMycobacterial respiratory chainMycobacterium tuberculosis oxidative phosphorylation

Inhibition of ATP synthase (Bedaquiline), inhibition of InhA-mediated mycolic acid synthesis (Isoniazid, Ethionamide), inhibition of the cytochrome bcc complex (Telacebec), and de-energization of the cell membrane (Clofazimine).