Seroatlas · Human Serome Atlas

COX14

Cytochrome c oxidase assembly protein COX14

Also known as: C12orf62, COX14_HUMAN, MGC14288

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

Protein identityUniProt · HPA

UniProt accession
Q96I36
Gene
COX14
Ensembl
ENSG00000178449
Chromosome
12
Canonical length
57 aa
Protein class
Disease related genes, Human disease related genes, Predicted membrane proteins
Subcellular location
Mitochondria

OverviewNCBI Gene

This gene encodes a small single-pass transmembrane protein that localizes to mitochondria. This protein may play a role in coordinating the early steps of cytochrome c oxidase (COX; also known as complex IV) subunit assembly and, in particular, the synthesis and assembly of the COX I subunit of the holoenzyme. Mutations in this gene have been associated with mitochondrial complex IV deficiency. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2012]

Canonical amino-acid sequenceUniProt

57 residues, UniProt reviewed canonical sequence.

>Q96I36|COX14
     1  MPTGKQLADI GYKTFSTSMM LLTVYGGYLC SVRVYHYFQW RRAQRQAAEE QKTSGIM

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against COX14 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
1
Mean surface accessibility (rSASA)
0.53
Highest tissue expression
374 nTPM

Expression across tissuesHPA

Tissue

  • heart muscle: 374 nTPM
  • skeletal muscle: 310 nTPM
  • tongue: 258 nTPM
  • kidney: 236 nTPM
  • choroid plexus: 227 nTPM
  • liver: 206 nTPM

Single-cell type

  • parietal cells: 267 nCPM
  • gastric chief cells: 92 nCPM
  • mucous neck cells: 57 nCPM
  • endometrial secretory cells: 37 nCPM
  • hepatocytes: 33 nCPM
  • foveolar cells: 32 nCPM

Immune cell

  • basophil: 260 nTPM
  • plasmacytoid DC: 248 nTPM
  • T-reg: 226 nTPM
  • total PBMC: 215 nTPM
  • memory B-cell: 215 nTPM
  • classical monocyte: 199 nTPM

Brain region

  • choroid plexus: 113 nTPM
  • white matter: 91 nTPM
  • cerebellum: 91 nTPM
  • hypothalamus: 81 nTPM
  • thalamus: 78 nTPM
  • medulla oblongata: 77 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about COX14.

Disease | AllUniProt

Conditions COX14 is implicated in, by any mechanism.

Disease | GeneticClinVar

2 pathogenic / likely-pathogenic of 49 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
1.8
gnomAD pLI
0.36
gnomAD missense Z
-0.06
DepMap mean gene effect
-0.19
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

Cellular components

Protein domainsUniProt · Pfam · InterPro

  • Cytochrome c oxidase assembly protein COX14
  • Cytochrome oxidase c assembly

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads COX14 as an antibody target. Whether an autoantibody or antibody against COX14 could matter depends on whether native COX14 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

COX14 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 COX14 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/COX14. 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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