NDUFA8
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8
Also known as: MGC793, NDUA8_HUMAN, PGIV
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P51970
- Gene
- NDUFA8
- Ensembl
- ENSG00000119421
- Chromosome
- 9
- Canonical length
- 172 aa
- Protein class
- Disease related genes, Human disease related genes, Metabolic proteins, Predicted intracellular proteins
- Subcellular location
- Mitochondria,Mid piece,Principal piece,End piece
OverviewNCBI Gene
The protein encoded by this gene belongs to the complex I 19 kDa subunit family. Mammalian complex I is composed of 45 different subunits. This protein has NADH dehydrogenase activity and oxidoreductase activity. It plays an important role in transfering electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]
Canonical amino-acid sequenceUniProt
172 residues, UniProt reviewed canonical sequence.
>P51970|NDUFA8
1 MPGIVELPTL EELKVDEVKI SSAVLKAAAH HYGAQCDKPN KEFMLCRWEE KDPRRCLEEG
61 KLVNKCALDF FRQIKRHCAE PFTEYWTCID YTGQQLFRHC RKQQAKFDEC VLDKLGWVRP
121 DLGELSKVTK VKTDRPLPEN PYHSRPRPDP SPEIEGDLQP ATHGSRFYFW TKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against NDUFA8 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
- 0
- Mean surface accessibility (rSASA)
- 0.42
- Highest tissue expression
- 356 nTPM
Expression across tissuesHPA
Tissue
- heart muscle: 356 nTPM
- tongue: 339 nTPM
- skeletal muscle: 243 nTPM
- basal ganglia: 150 nTPM
- cerebral cortex: 149 nTPM
- amygdala: 135 nTPM
Single-cell type
- late primary spermatocytes: 791 nCPM
- oocytes: 401 nCPM
- early spermatids: 374 nCPM
- parietal cells: 355 nCPM
- esophageal suprabasal cells: 226 nCPM
- esophageal basal cells: 203 nCPM
Immune cell
- plasmacytoid DC: 114 nTPM
- myeloid DC: 109 nTPM
- intermediate monocyte: 101 nTPM
- naive B-cell: 93 nTPM
- T-reg: 92 nTPM
- non-classical monocyte: 89 nTPM
Brain region
- hypothalamus: 76 nTPM
- cerebral cortex: 72 nTPM
- cerebellum: 70 nTPM
- basal ganglia: 70 nTPM
- thalamus: 69 nTPM
- hippocampal formation: 65 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about NDUFA8.
Disease | AllUniProt
Conditions NDUFA8 is implicated in, by any mechanism.
- Mitochondrial complex I deficiency, nuclear type 37 (MC1DN37) MIM:619272
Disease | GeneticClinVar
3 pathogenic / likely-pathogenic of 42 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Mitochondrial complex I deficiency, nuclear type 37
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.72
- gnomAD pLI
- 0.34
- gnomAD missense Z
- 0.48
- DepMap mean gene effect
- -0.44
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- aerobic respiration
- mitochondrial electron transport, NADH to ubiquinone
- proton motive force-driven mitochondrial ATP synthesis
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- CHCH
- CHCH domain
- NADH dehydrogenase [ubiquinone] (complex I), alpha subcomplex, subunit 8
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NDUFA8 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 NDUFA8 as an antibody target. Whether an autoantibody or antibody against NDUFA8 could matter depends on whether native NDUFA8 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NDUFA8 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 NDUFA8 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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