raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:447954

Combined oxidative phosphorylation defect type 25

Synonyms: COXPD25

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

Combined oxidative phosphorylation defect type 25 is a rare mitochondrial oxidative phosphorylation disorder with decreased respiratory complex I and IV enzyme activities, characterized by hypotonia, global developmental delay, neonatal onset of progressive pectus carinatum without other skeletal abnormalities, poor growth, sensorineural hearing loss, dysmorphic features and brain abnormalities such as cerebral atrophy, quadriventricular dilatation and thin corpus callosum posteriorly.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCombined oxidative phosphorylation defect type 25COXPD25
frDéficit combiné de la phosphorylation oxydative type 25= en
deKombinierter Defekt der oxidativen Phosphorylierung Typ 25= en
esDeficiencia combinada de la fosforilación oxidativa tipo 25= en
itDifetto combinato della fosforilazione ossidativa, tipo 25= en
nlGecombineerde oxidatieve fosforylatiedeficiëntie type 25COXPD25 · Gecombineerde oxidatieve fosforyleringdeficiëntie type 25
ptDéfice combinado da fosforilação oxidativa tipo 25
plZłożony defekt fosforylacji oksydacyjnej typu 25= en
csKombinovaný deficit oxidativní fosforylace, typ 25= en
ukКомбінований дефект окисного фосфорилювання, тип 25= en
zh联合氧化磷酸化缺陷25型= en
trKombine oksidatif fosforilasyon defekti tip 25= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616430Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C53.23NTBTattributedvalidated
MONDO0014636Evalidated
UMLSC5567742Evalidated

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 (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MARS2Disease-causing germline mutation(s) inAssessedHGNC:25133ENSG000002476266097282q33.1methionyl-tRNA synthetase 2, mitochondrial25754315[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated25754315[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25754315[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