raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:369913

Combined oxidative phosphorylation defect type 17

Synonyms: COXPD17

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

Combined oxidative phosphorylation defect type 17 is a rare, genetic, mitochondrial disorder due to a defect in mitochondrial protein synthesis characterized by infantile-onset of severe hypertrophic cardiomyopathy (that occasionally progresses to dilated cardiomyopathy) associated with failure to thrive, global development delay, muscular hypotonia, elevated serum lactate and complex I deficiency in skeletal muscle biopsy. Intellectual disability, pericardial effusion and a mild cardiac phenotype have been also reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCombined oxidative phosphorylation defect type 17COXPD17
frDéficit combiné de la phosphorylation oxydative type 17= en
deKombinierter Defekt der oxidativen Phosphorylierung Typ 17= en
esDeficiencia combinada de la fosforilación oxidativa tipo 17= en
itDifetto combinato della fosforilazione ossidativa, tipo 17= en
nlGecombineerde oxidatieve fosforylatiedeficiëntie type 17COXPD17 · Gecombineerd defect in oxidatieve fosforylering type 17
ptDefeito combinado da fosforilação oxidativa, tipo 17
plZłożony defekt fosforylacji oksydacyjnej typu 17= en
csKombinovaná porucha oxidativní fosforylace, typ 17= en
ukКомбінований дефект окисного фосфорилювання, тип 17= en
zh结合氧化磷酸化不足17型= en
trKombine oksidatif fosforilasyon defekti tip 17= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615440Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C53.23NTBTattributedvalidated
MONDO0014190Evalidated
UMLSC3809526Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ELAC2Disease-causing germline mutation(s) inAssessedHGNC:14198ENSG0000000674460536717p12elaC ribonuclease Z 223849775[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families20 familiesWorldwideFamily(ies)Validated23849775[PMID]_27769300[PMID]_28441660[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_27769300[PMID]_28441660[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.

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HPO phenotypes

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

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Sources for this card