Mycobacterium tuberculosis cell membrane and energetics

The Mycobacterium tuberculosis cell membrane and energetics target refers to the integrated biochemical pathways and structural components responsible for maintaining the electrochemical gradient and generating ATP in M. tuberculosis [1]. This system includes the electron transport chain (ETC), comprising complexes such as NADH dehydrogenase (NDH-1 and NDH-2), the cytochrome bc1:aa3 oxidase complex, and the F1F0-ATP synthase [2][3]. These components are essential for the survival of the pathogen in both its actively replicating and dormant (non-replicating) states, as the maintenance of a proton motive force is required even when the bacteria are not growing [4]. Drugs targeting this system, most notably bedaquiline, have revolutionized the treatment of multidrug-resistant tuberculosis by specifically inhibiting mycobacterial energy production [5]. Because these targets are often distinct from their human mitochondrial counterparts, they provide a high degree of selectivity, although concerns such as QT prolongation remain a clinical challenge [6].

Other names

Mtb respiratory chainMtb oxidative phosphorylation systemMtb bioenergeticsMtb electron transport chain

Inhibition of mycobacterial F1F0-ATP synthase [1]; Inhibition of the cytochrome bc1:aa3 complex (QcrB subunit) [2]; Disruption of the proton motive force and membrane potential [3]; Respiratory poisoning via nitric oxide release [4].