NDUFB7
NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7
Also known as: B18, CI-B18, MGC2480, NDUB7_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P17568
- Gene
- NDUFB7
- Ensembl
- ENSG00000099795
- Chromosome
- 19
- Canonical length
- 137 aa
- Protein class
- Metabolic proteins, Predicted intracellular proteins
OverviewNCBI Gene
The protein encoded by this gene is a subunit of the multisubunit NADH:ubiquinone oxidoreductase (complex I). Mammalian complex I is composed of 45 different subunits. It is located at the mitochondrial inner membrane. This protein has NADH dehydrogenase activity and oxidoreductase activity. It transfers electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
137 residues, UniProt reviewed canonical sequence.
>P17568|NDUFB7
1 MGAHLVRRYL GDASVEPDPL QMPTFPPDYG FPERKEREMV ATQQEMMDAQ LRLQLRDYCA
61 HHLIRLLKCK RDSFPNFLAC KQERHDWDYC EHRDYVMRMK EFERERRLLQ RKKRREKKAA
121 ELAKGQGPGE VDPKVALLocalizationUniProt · AlphaFold · HPA
Whether an antibody against NDUFB7 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)
- 0.44
- Highest tissue expression
- 665 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 665 nTPM
- heart muscle: 660 nTPM
- kidney: 335 nTPM
- amygdala: 329 nTPM
- liver: 322 nTPM
- midbrain: 321 nTPM
Single-cell type
- parietal cells: 1,024 nCPM
- colonocytes: 1,006 nCPM
- enterocytes: 803 nCPM
- esophageal suprabasal cells: 740 nCPM
- hepatocytes: 690 nCPM
- enteric transient amplifying cells: 589 nCPM
Immune cell
- total PBMC: 563 nTPM
- plasmacytoid DC: 462 nTPM
- gdT-cell: 434 nTPM
- NK-cell: 423 nTPM
- myeloid DC: 417 nTPM
- classical monocyte: 416 nTPM
Brain region
- cerebellum: 205 nTPM
- thalamus: 205 nTPM
- hypothalamus: 184 nTPM
- medulla oblongata: 184 nTPM
- midbrain: 180 nTPM
- white matter: 179 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about NDUFB7.
Disease | AllUniProt
Conditions NDUFB7 is implicated in, by any mechanism.
- Mitochondrial complex I deficiency, nuclear type 39 (MC1DN39) MIM:620135
Disease | GeneticClinVar
1 pathogenic / likely-pathogenic of 31 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Mitochondrial disorder due to a defect in assembly or maturation of the respiratory chain complexes
- Mitochondrial complex I deficiency, nuclear type 39
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)
- 1.67
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.27
- DepMap mean gene effect
- -0.5
- 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
- NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7, NDUB7
- NADH-ubiquinone oxidoreductase B18 subunit (NDUFB7)
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NDUFB7 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 NDUFB7 as an antibody target. Whether an autoantibody or antibody against NDUFB7 could matter depends on whether native NDUFB7 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NDUFB7 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 NDUFB7 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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