| COX7A2 | 
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| Identifiers | 
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| Aliases | COX7A2, COX7AL, COX7AL1, COXVIIAL, COXVIIa-L, VIIAL, cytochrome c oxidase subunit 7A2 | 
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| External IDs | OMIM: 123996; MGI: 1316715; HomoloGene: 36082; GeneCards: COX7A2; OMA:COX7A2 - orthologs | 
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| | Gene location (Mouse) | 
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 |  |  | Chr. | Chromosome 9 (mouse) | 
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 |  |  | Band | 9 E1|9 43.82 cM | Start | 79,662,643 bp | 
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 | End | 79,667,160 bp | 
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| | RNA expression pattern | 
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 | Bgee | | Human | Mouse (ortholog) | 
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 | | Top expressed in |  | endothelial cell
 left testis
 right testis
 pancreatic ductal cell
 right ventricle
 Brodmann area 23
 sperm
 apex of heart
 primary visual cortex
 lateral nuclear group of thalamus
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 | | Top expressed in |  | facial motor nucleus
 medial ganglionic eminence
 digastric muscle
 otic placode
 temporal muscle
 sternocleidomastoid muscle
 epithelium of stomach
 triceps brachii muscle
 intercostal muscle
 medial vestibular nucleus
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 |  | More reference expression data | 
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 | BioGPS |  | 
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| Wikidata | 
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Cytochrome c oxidase polypeptide 7A2, mitochondrial is an enzyme that in humans is encoded by the COX7A2 gene.
Cytochrome c oxidase (COX), the terminal component of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. 
This component 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 electron transfer, and the nuclear-encoded subunits may function in the regulation and assembly of the complex. This nuclear gene encodes polypeptide 2 (liver isoform) of subunit VIIa and the polypeptide 2 is present in both muscle and nonmuscle tissues. 
In addition to polypeptide 2, subunit VIIa includes polypeptide 1 (muscle isoform), which is present only in muscle tissues, and a related protein, present in all tissues. This gene may have several pseudogenes.