raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:319519

Combined oxidative phosphorylation defect type 14

Synonyms: COXPD14

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

Combined oxidative phosphorylation defect type 14 is a rare mitochondrial disease due to a defect in mitochondrial protein synthesis characterized by neonatal or infancy-onset of seizures that are refractory to treatment, delayed or absent psychomotor development and lactic acidosis. Additional manifestations reported include poor feeding, failure to thrive, microcephaly, hypotonia, anemia and thrombocytopenia.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCombined oxidative phosphorylation defect type 14COXPD14
frDéficit combiné de la phosphorylation oxydative type 14= en
deKombinierter Defekt der oxidativen Phosphorylierung Typ 14= en
esDeficiencia combinada de la fosforilación oxidativa tipo 14= en
itDifetto combinato della fosforilazione ossidativa, tipo 14= en
nlGecombineerde oxidatieve fosforylatiedeficiëntie type 14COXPD14 · Gecombineerd defect in oxidatieve fosforylering type 14
ptDefeito combinado da fosforilação oxidativa, tipo 14
plZłożony defekt fosforylacji oksydacyjnej typu 14= en
csKombinovaná porucha oxidativní fosforylace, typ 14= en
ukКомбінований дефект окисного фосфорилювання, тип 14= en
zh复合氧化磷酸化缺陷14型= en
trKombine oksidatif fosforilasyon defekti tip 14= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614946Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C53.23NTBTattributedvalidated
MONDO0013986Evalidated
UMLSC4755312Evalidated

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
FARS2Disease-causing germline mutation(s) inAssessedHGNC:21062ENSG000001459826115926p25.1phenylalanyl-tRNA synthetase 2, mitochondrial22499341[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated22833457[PMID]_22499341[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_22833457[PMID]_22499341[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