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Cytochrome c oxidase (COX), the terminal enzyme of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. It is a heteromeric complex consisting of 3 catalytic subunits encoded by mitochondrial genes and multiple structural subunits encoded by nuclear genes. The mitochondrially-encoded subunits function in the electron transfer and the nuclear-encoded subunits may function in the regulation and assembly of the complex. This nuclear gene encodes polypeptide 1 (liver isoform) of subunit VIa, and polypeptide 1 is found in all non-muscle tissues. Polypeptide 2 (heart/muscle isoform) of subunit VIa is encoded by a different gene, and is present only in striated muscles. These two polypeptides share 66% amino acid sequence identity. It has been reported that there may be several pseudogenes on chromosomes 1, 6, 7q21, 7q31-32 and 12. However, only one pseudogene (COX6A1P) on chromosome 1p31.1 has been documented. [provided by RefSeq, Jul 2008]
COX6A1 (Cytochrome C Oxidase Subunit 6A1) is a Protein Coding gene. Diseases associated with COX6A1 include Charcot-Marie-Tooth Disease, Recessive Intermediate D and Charcot-Marie-Tooth Disease. Among its related pathways are Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. and Cardiac muscle contraction. Gene Ontology (GO) annotations related to this gene include cytochrome-c oxidase activity. An important paralog of this gene is COX6A2.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0004129 | contributes_to cytochrome-c oxidase activity | IBA | 21873635 |
GO:0016491 | oxidoreductase activity | IEA | -- |
GO:0030234 | enzyme regulator activity | IBA | 21873635 |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005739 | mitochondrion | IEA,IDA | -- |
GO:0005743 | mitochondrial inner membrane | TAS | -- |
GO:0005751 | mitochondrial respiratory chain complex IV | IBA | 21873635 |
GO:0016020 | membrane | IEA | -- |
GO:0016021 | integral component of membrane | IEA | -- |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. |
.40
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2 | Parkinson disease | ||
3 | Metabolism |
.40
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4 | Gene Expression |
.48
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5 | Cardiac muscle contraction |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0006091 | generation of precursor metabolites and energy | TAS | 2549515 |
GO:0006119 | oxidative phosphorylation | IEA | -- |
GO:0006123 | mitochondrial electron transport, cytochrome c to oxygen | IBA,TAS | -- |
GO:0009060 | aerobic respiration | IBA | 21873635 |
GO:0022900 | electron transport chain | IEA | -- |
This gene was present in the common ancestor of animals and fungi.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Chimpanzee (Pan troglodytes) |
Mammalia | COX6A1 31 |
|
OneToOne | |
LOC100616508 30 |
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Dog (Canis familiaris) |
Mammalia | LOC477508 30 |
|
||
-- 31 |
|
ManyToMany | |||
-- 31 |
|
ManyToMany | |||
-- 31 |
|
ManyToMany | |||
Rat (Rattus norvegicus) |
Mammalia | Cox6a1 30 |
|
||
Cow (Bos Taurus) |
Mammalia | COX6A1 31 |
|
ManyToMany | |
-- 31 |
|
ManyToMany | |||
Mouse (Mus musculus) |
Mammalia | Cox6a1 30 17 31 |
|
OneToMany | |
Oppossum (Monodelphis domestica) |
Mammalia | -- 31 |
|
OneToMany | |
Chicken (Gallus gallus) |
Aves | COX6A1 30 31 |
|
OneToMany | |
Lizard (Anolis carolinensis) |
Reptilia | -- 31 |
|
OneToMany | |
Tropical Clawed Frog (Silurana tropicalis) |
Amphibia | cox6a1 30 |
|
||
Zebrafish (Danio rerio) |
Actinopterygii | cox6a1 30 31 |
|
OneToMany | |
African malaria mosquito (Anopheles gambiae) |
Insecta | AgaP_AGAP000851 30 |
|
||
Fruit Fly (Drosophila melanogaster) |
Insecta | levy 30 31 |
|
ManyToMany | |
CG30093 31 |
|
ManyToMany | |||
CG14077 31 |
|
ManyToMany | |||
Worm (Caenorhabditis elegans) |
Secernentea | tag-174 31 |
|
OneToMany | |
Baker's yeast (Saccharomyces cerevisiae) |
Saccharomycetes | COX13 33 |
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SNP ID | Clinical significance and condition | Chr 12 pos | Variation | AA Info | Type |
---|---|---|---|---|---|
669703 | Benign: not provided | 120,438,673(+) | T/A | INTRON_VARIANT | |
676114 | Benign: not provided | 120,438,262(+) | A/C | INTRON_VARIANT | |
676664 | Likely Benign: not provided | 120,437,972(+) | T/C | ||
676665 | Likely Benign: not provided | 120,438,079(+) | G/A | ||
682112 | Likely Benign: not provided | 120,438,241(+) | G/A | INTRON_VARIANT |
Variant ID | Type | Subtype | PubMed ID |
---|---|---|---|
esv3630923 | CNV | gain | 21293372 |
nsv509482 | CNV | insertion | 20534489 |
Disorder | Aliases | PubMed IDs |
---|---|---|
charcot-marie-tooth disease, recessive intermediate d |
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charcot-marie-tooth disease |
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tooth disease |
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charcot-marie-tooth disease, axonal, type 2t |
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charcot-marie-tooth disease, axonal, type 2e |
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