raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:33574

Glutamate-cysteine ligase deficiency

Synonyms: Gamma-glutamylcysteine synthetase deficiency

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

A disorder that is principally characterized by hemolytic anemia, (usually rather mild), however, the presence of neurological symptoms has also been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enGlutamate-cysteine ligase deficiencyGamma-glutamylcysteine synthetase deficiency
frDéficit en glutamate-cystéine ligaseDéficit en gamma-glutamylcystéine synthétase
deGlutamat-Cystein-Ligase-MangelGamma-Glutamyl-Cystein-Synthetase-Mangel
esDeficiencia de glutamato-cisteína ligasaDeficiencia de gamma-glutamilcisteína sintetasa
itDeficit di gamma-glutamilcisteina sintetasiDeficit di glutammato-cisteina ligasi
nlDeficiëntie van glutamaat-cysteïneligaseDeficiëntie van gamma-glutamylcysteïne-synthetase
ptDeficiência de gama-glutamilcisteína sintetaseDeficiência de glutamato-cisteína ligase
plNiedobór syntetazy gamma-glutamylocysteinyNidobór ligazy glutaminy i cysteiny
csDeficit gamma-glutamylcysteinsyntetázyDeficit glutamát-cystein ligázy
ukДефіцит глутамат-цистеїнової лігазиДефіцит гамма-глутамілцистеїнсинтетази
zh谷氨酸-半胱氨酸连接酶缺乏γ-谷氧酰半胱氨酸合成酶缺乏症
trGlutamat-sistein ligaz eksikliğiGama-glutamilsistein sentetaz eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM230450Evalidated
ICD-10D55.1NTBTattributedvalidated
ICD-113A10.0YNTBTindexvalidated
MONDO0009259Evalidated
UMLSC0268523Evalidated

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
GCLCDisease-causing germline mutation(s) inAssessedHGNC:4311ENSG000000010846068576p12.1glutamate-cysteine ligase catalytic subunit10515893[PMID]_18024385[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families10 casesWorldwideCase(s)Validated18024385[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_18024385[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

15 annotations · validated 2019-07-01
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0001878Hemolytic anemia
Very frequent (99-80%)
HP:0003355Aminoaciduria
HP:0003198Myopathy
HP:0009830Peripheral neuropathy
HP:0002503Spinocerebellar tract degeneration
Occasional (29-5%)
HP:0001251Ataxia
HP:0001260Dysarthria
HP:0010522Dyslexia
HP:0001263Global developmental delay
HP:0001433Hepatosplenomegaly
HP:0001347Hyperreflexia
HP:0001249Intellectual disability
HP:0000952Jaundice
HP:0000709Psychosis
HP:0001923Reticulocytosis

Run the differential on the 5 obligate / very frequent terms

Annotation source: 17397529[PMID]

7

Sources for this card