U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination

COA3 cytochrome c oxidase assembly factor 3 [ Homo sapiens (human) ]

Gene ID: 28958, updated on 11-Apr-2024

Summary

Go to the top of the page Help
Official Symbol
COA3provided by HGNC
Official Full Name
cytochrome c oxidase assembly factor 3provided by HGNC
Primary source
HGNC:HGNC:24990
See related
Ensembl:ENSG00000183978 MIM:614775; AllianceGenome:HGNC:24990
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
COX25; hCOA3; CCDC56; HSPC009; MC4DN14; MITRAC12
Summary
This gene encodes a member of the cytochrome c oxidase assembly factor family. Studies of a related gene in fly suggest that the encoded protein is localized to mitochondria and is essential for cytochrome c oxidase function. [provided by RefSeq, Nov 2012]
Expression
Ubiquitous expression in kidney (RPKM 59.3), duodenum (RPKM 48.8) and 25 other tissues See more
Orthologs
mouse all
NEW
Try the new Gene table
Try the new Transcript table

Genomic context

Go to the top of the page Help
Location:
17q21.2
Exon count:
2
Annotation release Status Assembly Chr Location
RS_2023_10 current GRCh38.p14 (GCF_000001405.40) 17 NC_000017.11 (42797625..42798704, complement)
RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) 17 NC_060941.1 (43654765..43655844, complement)
105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) 17 NC_000017.10 (40949643..40950722, complement)

Chromosome 17 - NC_000017.11Genomic Context describing neighboring genes Neighboring gene ATAC-STARR-seq lymphoblastoid active region 12222 Neighboring gene H3K27ac hESC enhancer GRCh37_chr17:40925642-40926189 Neighboring gene Sharpr-MPRA regulatory region 12532 Neighboring gene vacuolar protein sorting 25 homolog Neighboring gene H3K4me1 hESC enhancer GRCh37_chr17:40932701-40933658 Neighboring gene CDK7 strongly-dependent group 2 enhancer GRCh37_chr17:40934948-40936147 Neighboring gene WNK lysine deficient protein kinase 4 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 12223 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 12224 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 12225 Neighboring gene cyclin N-terminal domain containing 1 Neighboring gene beclin 1 Neighboring gene CDK7 strongly-dependent group 2 enhancer GRCh37_chr17:40969798-40970997 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 8548 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr17:40975527-40976093 Neighboring gene microRNA 6781

Genomic regions, transcripts, and products

Go to the top of the page Help

Go to nucleotide: Graphics FASTA GenBank

Expression

Go to the top of the page Help
  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

Go to the top of the pageHelp

Related articles in PubMed

  1. Human COA3 Is an Oligomeric Highly Flexible Protein in Solution. Neira JL, et al. Biochemistry, 2016 Nov 15. PMID 27791355
  2. Mutations in COA3 cause isolated complex IV deficiency associated with neuropathy, exercise intolerance, obesity, and short stature. Ostergaard E, et al. J Med Genet, 2015 Mar. PMID 25604084
  3. COX assembly factor ccdc56 regulates mitochondrial morphology by affecting mitochondrial recruitment of Drp1. Ban-Ishihara R, et al. FEBS Lett, 2015 Oct 7. PMID 26358295
  4. MITRAC7 Acts as a COX1-Specific Chaperone and Reveals a Checkpoint during Cytochrome c Oxidase Assembly. Dennerlein S, et al. Cell Rep, 2015 Sep 8. PMID 26321642
  5. MITRAC links mitochondrial protein translocation to respiratory-chain assembly and translational regulation. Mick DU, et al. Cell, 2012 Dec 21. PMID 23260140

See all (32) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. Data suggest that COX assembly factor 3 (hCOA3) is a disordered protein and that the flexibility of hCOA3 is crucial for its interaction with other proteins to favor mitochondrial protein translocation and assembly of proteins involved in the respiratory chain.
    Title: Human COA3 Is an Oligomeric Highly Flexible Protein in Solution.
  2. COX14 was undetectable in COA3 subject fibroblasts, and that COA3 was undetectable in fibroblasts from a COX14 subject, demonstrating the interdependence of these two COX assembly factors
    Title: Mutations in COA3 cause isolated complex IV deficiency associated with neuropathy, exercise intolerance, obesity, and short stature.
  3. Data show that mitochondrial protein ccdc56/MITRAC12/COA3 positively regulates mitochondrial fission by recruiting the fission factor Drp1.
    Title: COX assembly factor ccdc56 regulates mitochondrial morphology by affecting mitochondrial recruitment of Drp1.
  4. hCOA3 stabilizes COX1 co-translationally and promotes its assembly with COX partner subunits.
    Title: hCOA3 stabilizes cytochrome c oxidase 1 (COX1) and promotes cytochrome c oxidase assembly in human mitochondria.
  5. Study comprehensively identified mammalian cytochrome c oxidase assembly factors. These analyses led to the discoveryof MITRAC12, which defines the MITRAC (mitochondrial translation regulation assembly intermediate of cytochrome c oxidase)complexes.
    Title: MITRAC links mitochondrial protein translocation to respiratory-chain assembly and translational regulation.
  6. Human ortholog of fungal COA3 (Cytochrome oxidase assembly)
    Title: Iterative orthology prediction uncovers new mitochondrial proteins and identifies C12orf62 as the human ortholog of COX14, a protein involved in the assembly of cytochrome c oxidase.
Submit: New GeneRIF Correction

Phenotypes

Go to the top of the page Help

Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description Tests
Mitochondrial complex 4 deficiency, nuclear type 14
MedGen: C5436710 OMIM: 619058 GeneReviews: Not available
Compare labs

Variation

Go to the top of the page Help

See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

Pathways from PubChem

Go to the top of the page

Interactions

Go to the top of the page Help
Products Interactant Other Gene Complex Source Pubs Description

General gene information

Go to the top of the page Help

Markers

Homology

Clone Names

  • FLJ50764

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in mitochondrial cytochrome c oxidase assembly IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in mitochondrial cytochrome c oxidase assembly IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in positive regulation of mitochondrial translation IMP
Inferred from Mutant Phenotype
more info
 PubMed 
Component Evidence Code Pubs
is_active_in mitochondrial inner membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in mitochondrial inner membrane IDA
Inferred from Direct Assay
more info
 PubMed 
located_in mitochondrion IDA
Inferred from Direct Assay
more info
  

General protein information

Go to the top of the page Help
Preferred Names
cytochrome c oxidase assembly factor 3 homolog, mitochondrial
Names
coiled-coil domain-containing protein 56
cytochrome C oxidase assembly factor 3 homolog, mitochondrial
cytochrome c oxidase assembly protein 3 homolog, mitochondrial
mitochondrial translation regulation assembly intermediate of cytochrome c oxidase protein of 12 kDa

NCBI Reference Sequences (RefSeq)

Go to the top of the page Help

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_046771.1 RefSeqGene

    Range
    5022..6101
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001040431.3 → NP_001035521.1  cytochrome c oxidase assembly factor 3 homolog, mitochondrial

    See identical proteins and their annotated locations for NP_001035521.1

    Status: REVIEWED

    Source sequence(s)
    AC016889, AL524532, BC002698
    Consensus CDS
    CCDS32660.1
    UniProtKB/Swiss-Prot
    A8K498, Q9Y2R0
    Related
    ENSP00000354762.5, ENST00000328434.8
    Conserved Domains (1) summary
    pfam09813
    Location:9 → 91
    Coiled-coil_56; Coiled-coil domain-containing protein 56

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2023_10

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000017.11 Reference GRCh38.p14 Primary Assembly

    Range
    42797625..42798704 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060941.1 Alternate T2T-CHM13v2.0

    Range
    43654765..43655844 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Suppressed Reference Sequence(s)

The following Reference Sequences have been suppressed. Explain

  1. NM_014019.1: Suppressed sequence

    Description
    NM_014019.1: This RefSeq record was removed by NCBI staff. Contact info@ncbi.nlm.nih.gov for further information.
Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q9Y2R0.1 GenPept UniProtKB/Swiss-Prot:Q9Y2R0

Gene LinkOut

The following LinkOut resources are supplied by external providers. These providers are responsible for maintaining the links.

Chemical Information
Molecular Biology Databases
Research Materials
Tools
Miscellaneous