MT-ATP6
ATP synthase F(0) complex subunit a
Also known as: ATP6, ATP6_HUMAN, ATPase-6, MTATP6, RP, Su6m
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P00846
- Gene
- MT-ATP6
- Ensembl
- ENSG00000198899
- Chromosome
- MT
- Canonical length
- 226 aa
- Protein class
- Disease related genes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted membrane proteins, Transporters
- Quaternary structure
- Homooctamer
OverviewNCBI Gene
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]
Canonical amino-acid sequenceUniProt
226 residues, UniProt reviewed canonical sequence.
>P00846|MT-ATP6
1 MNENLFASFI APTILGLPAA VLIILFPPLL IPTSKYLINN RLITTQQWLI KLTSKQMMTM
61 HNTKGRTWSL MLVSLIIFIA TTNLLGLLPH SFTPTTQLSM NLAMAIPLWA GTVIMGFRSK
121 IKNALAHFLP QGTPTPLIPM LVIIETISLL IQPMALAVRL TANITAGHLL MHLIGSATLA
181 MSTINLPSTL IIFTILILLT ILEIAVALIQ AYVFTLLVSL YLHDNTLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MT-ATP6 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Other membrane
- Secreted
- No
- Transmembrane segments
- 6
- Mean surface accessibility (rSASA)
- 0.34
- Highest tissue expression
- 240,226 nTPM
Expression across tissuesHPA
Tissue
- heart muscle: 240,226 nTPM
- basal ganglia: 130,882 nTPM
- liver: 105,627 nTPM
- skeletal muscle: 103,809 nTPM
- hippocampal formation: 103,601 nTPM
- amygdala: 96,696 nTPM
Single-cell type
- pancreatic acinar cells: 31,238 nCPM
- retinal bipolar cells: 30,658 nCPM
- hepatocytes: 22,793 nCPM
- enterocytes: 22,021 nCPM
- retinal horizontal cells: 21,526 nCPM
- colonocytes: 21,235 nCPM
Immune cell
- basophil: 15,233 nTPM
- eosinophil: 4,261 nTPM
- memory B-cell: 2,689 nTPM
- naive B-cell: 2,561 nTPM
- classical monocyte: 2,482 nTPM
- neutrophil: 2,440 nTPM
Brain region
- choroid plexus: 81,688 nTPM
- medulla oblongata: 81,163 nTPM
- cerebral cortex: 73,336 nTPM
- pons: 71,726 nTPM
- thalamus: 61,358 nTPM
- midbrain: 58,129 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MT-ATP6.
Disease | AllUniProt
Conditions MT-ATP6 is implicated in, by any mechanism.
- Neuropathy, ataxia, and retinitis pigmentosa (NARP) MIM:551500
- Leber hereditary optic neuropathy (LHON) MIM:535000
- Leigh syndrome (LS) MIM:256000
- Mitochondrial infantile bilateral striatal necrosis (MIBSN) MIM:500003
- Mitochondrial complex V deficiency, mitochondrial 1 (MC5DM1) MIM:500015
- Myopathy, lactic acidosis, and sideroblastic anemia 3 (MLASA3) MIM:500011
- Ataxia and polyneuropathy, adult-onset (APAO) MIM:500010
- Cardiomyopathy, infantile hypertrophic (CMHI) MIM:500006
Disease | GeneticClinVar
11 pathogenic / likely-pathogenic of 293 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
OntologyGO
Biological processes
- proton motive force-driven ATP synthesis
- proton motive force-driven mitochondrial ATP synthesis
- proton transmembrane transport
- response to hyperoxia
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- ATP synthase, F0 complex, subunit A
- ATP synthase, F0 complex, subunit A, active site
- ATP synthase, F0 complex, subunit A superfamily
- ATP synthase, F0 complex, subunit A, bacterial/mitochondria
- ATP synthase A chain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of MT-ATP6 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads MT-ATP6 as an antibody target. Whether an autoantibody or antibody against MT-ATP6 could matter depends on whether native MT-ATP6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MT-ATP6 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label MT-ATP6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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