Enables proton channel activity. Contributes to proton-transporting ATP synthase activity, rotational mechanism. Involved in proton motive force-driven mitochondrial ATP synthesis and proton transmembrane transport. Located in mitochondrion. Part of proton-transporting ATP synthase complex. Implicated in Leber hereditary optic neuropathy; NARP syndrome; Parkinson's disease; multiple sclerosis; and systemic lupus erythematosus. [provided by Alliance of Genome Resources, Jul 2025]
A study in mice demonstrated that the MT-ATP6 was the most substantially upregulated gene exclusively after burn injury in the primary somatosensory cortex, being associated with mitochondrial oxidative phosphorylation [Erdei et al. DOI:10.3390/ijms26083538]. In human sepsis patients, RNA-sequencing of serum identified the MT-ATP6 as a differentially expressed mRNA that was downregulated [Yu et al. DOI:10.1016/j.heliyon.2023.e15034].