raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:401859

Lipoic acid synthetase deficiency

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

A rare neurometabolic disease characterized by a neonatal onset of seizures (often intractable), muscular hypotonia, feeding difficulties (poor sucking and/or swallowing) and mild to severe psychomotor delay, associated with nonketotic hyperglycinemia typically revealed by biochemical analysis. Respiratory problems (apnea, acute respiratory acidosis), lethargy, hearing loss, microcephaly and spasticity with pyramidal signs may also be associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLipoic acid synthetase deficiency
frDéficit en acide lipoïque synthétase
deLiponsäure-Synthase-Mangel
esDeficiencia de ácido lipoico sintasa
itDeficit di acido lipoico sintetasi
nlLiponzuursynthasedeficiëntie
ptDéfice da sintetase do ácido lipóico
plNiedobór syntetazy kwasu liponowego
csDeficit syntetázy kyseliny lipoové
ukДефіцит синтетази ліпоєвої кислоти
zh硫辛酸合成酶缺乏症
trLipoik asit sentetaz eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614462Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C53.YNTBTattributedvalidated
MONDO0013762Evalidated
UMLSC5190587Evalidated
GARD12678Evalidated

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
LIASDisease-causing germline mutation(s) inAssessedHGNC:16429ENSG000001218976070314p14lipoic acid synthetase24334290[PMID]_24777537[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated24777537[PMID]_22152680[PMID]_24334290[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_24777537[PMID]_22152680[PMID]_24334290[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