raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:570491

QRSL1-related combined oxidative phosphorylation defect

Synonyms: QRSL1-related COXPD

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

A rare mitochondrial disease characterized by prenatal or early infantile onset of severe cardiomyopathy, failure to thrive and global developmental delay, sensorineural hearing loss, and severe lactic acidosis. Hepatic involvement and adrenal insufficiency, as well as encephalopathy and anomalies of deep gray matter structures on brain MRI have also been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enQRSL1-related combined oxidative phosphorylation defectQRSL1-related COXPD
frDéficit combiné de la phosphorylation oxydative associé à QRSL1COXPD associé à QRSL1
deKombinierter Defekt der oxidativen Phosphorylierung, QRSL1-assoziierterCOXPD, QRSL1-assoziiert
esDeficiencia combinada de la fosforilación oxidativa asociada a QRSL1COXPD asociada a QRSL1
itDifetto combinato della fosforilazione ossidativa correlato a QRSL1COXPD correlato a QRSL1
nlQRSL1-gerelateerde gecombineerde oxidatieve fosforylatiedeficiëntieQRSL1-gerelateerde COXPD
ptDefeito combinado da fosforilação oxidativa QRSL1-relacionado
plDefekt złożonej fosforylacji oksydacyjnej związany z QRSL1= en
csQRSL1-vázaný kombinovaný defekt oxidativní fosforylace= en
ukКомбінований дефект окислювального фосфорилювання, повязаний з QRSL1COXPD, повязане з QRSL1
zhQRSL1基因相关复合氧化磷酸化缺陷= en
trQRSL1-ilişkili kombine oksidatif fosforilasyon defektiQRSL1-ilişkili COXPD

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM618835Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C53.23NTBTattributedvalidated
MONDO0030006Evalidated
UMLSC5394232Evalidated

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
QRSL1Disease-causing germline mutation(s) inAssessedHGNC:21020ENSG000001303486172096q21glutaminyl-tRNA amidotransferase subunit QRSL130237576[PMID]_30283131[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_30459337[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