raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:319504

Combined oxidative phosphorylation defect type 8

Synonyms: COXPD8

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

Combined oxidative phosphorylation defect type 8 is a mitochondrial disease due to a defect in mitochondrial protein synthesis resulting in deficiency of respiratory chain complexes I, III and IV in the cardiac and skeletal muscle and brain characterized by severe hypertrophic cardiomyopathy, pulmonary hypoplasia, generalized muscle weakness and neurological involvement.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCombined oxidative phosphorylation defect type 8COXPD8
frDéficit combiné de la phosphorylation oxydative type 8= en
deKombinierter Defekt der oxidativen Phosphorylierung Typ 8= en
esDeficiencia combinada de la fosforilación oxidativa tipo 8= en
itDifetto combinato della fosforilazione ossidativa, tipo 8= en
nlGecombineerde oxidatieve fosforylatiedeficiëntie type 8COXPD8 · Gecombineerd defect in oxidatieve fosforylering type 8
ptDefeito combinado da fosforilação oxidativa, tipo 8
plZłożony defekt fosforylacji oksydacyjnej typu 8= en
csKombinovaná porucha oxidativní fosforylace, typ 8= en
ukКомбінований дефект окисного фосфорилювання, тип 8= en
zh复合氧化磷酸化缺陷8型= en
trKombine oksidatif fosforilasyon defekti tip 8= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614096Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C53.23NTBTattributedvalidated
MONDO0013570Evalidated
UMLSC4518839Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
AARS2Disease-causing germline mutation(s) inAssessedHGNC:21022ENSG000001246086120356p21.1alanyl-tRNA synthetase 2, mitochondrial21549344[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families7 casesWorldwideCase(s)Validated21549344[PMID]_25058219[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_21549344[PMID]_25058219[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card