Seroatlas · Human Serome Atlas

ATP5MC1

ATP synthase F(0) complex subunit C1, mitochondrial

Also known as: AT5G1_HUMAN, ATP5G, ATP5G1

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P05496
Gene
ATP5MC1
Ensembl
ENSG00000159199
Chromosome
17
Canonical length
136 aa
Protein class
Metabolic proteins, Predicted intracellular proteins, Predicted membrane proteins, Transporters
Quaternary structure
Homooctamer

OverviewNCBI Gene

This gene encodes a subunit of mitochondrial ATP synthase. Mitochondrial ATP synthase catalyzes ATP synthesis, utilizing an electrochemical gradient of protons across the inner membrane during oxidative phosphorylation. ATP synthase is composed of two linked multi-subunit complexes: the soluble catalytic core, F1, and the membrane-spanning component, Fo, comprising the proton channel. The catalytic portion of mitochondrial ATP synthase consists of 5 different subunits (alpha, beta, gamma, delta, and epsilon) assembled with a stoichiometry of 3 alpha, 3 beta, and a single representative of the other 3. The proton channel seems to have nine subunits (a, b, c, d, e, f, g, F6 and 8). This gene is one of three genes that encode subunit c of the proton channel. Each of the three genes have distinct mitochondrial import sequences but encode the identical mature protein. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

136 residues, UniProt reviewed canonical sequence.

>P05496|ATP5MC1
     1  MQTAGALFIS PALIRCCTRG LIRPVSASFL NSPVNSSKQP SYSNFPLQVA RREFQTSVVS
    61  RDIDTAAKFI GAGAATVGVA GSGAGIGTVF GSLIIGYARN PSLKQQLFSY AILGFALSEA
   121  MGLFCLMVAF LILFAM

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ATP5MC1 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
2
Mean surface accessibility (rSASA)
0.53
Highest tissue expression
1,209 nTPM

Expression across tissuesHPA

Tissue

  • tongue: 1,209 nTPM
  • skeletal muscle: 821 nTPM
  • heart muscle: 699 nTPM
  • colon: 336 nTPM
  • rectum: 323 nTPM
  • kidney: 277 nTPM

Single-cell type

  • parietal cells: 1,625 nCPM
  • enteric transient amplifying cells: 863 nCPM
  • esophageal basal cells: 820 nCPM
  • esophageal suprabasal cells: 797 nCPM
  • gastric progenitor cells: 700 nCPM
  • enteric stem cells: 633 nCPM

Immune cell

  • plasmacytoid DC: 557 nTPM
  • memory B-cell: 466 nTPM
  • myeloid DC: 449 nTPM
  • naive B-cell: 377 nTPM
  • total PBMC: 342 nTPM
  • classical monocyte: 330 nTPM

Brain region

  • hypothalamus: 128 nTPM
  • cerebellum: 127 nTPM
  • cerebral cortex: 115 nTPM
  • hippocampal formation: 106 nTPM
  • thalamus: 105 nTPM
  • medulla oblongata: 104 nTPM

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)
0.89
gnomAD pLI
0.43
DepMap mean gene effect
-0.33
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of ATP5MC1 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 ATP5MC1 as an antibody target. Whether an autoantibody or antibody against ATP5MC1 could matter depends on whether native ATP5MC1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

ATP5MC1 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 ATP5MC1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/ATP5MC1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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