raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:353217

Epileptic encephalopathy with global cerebral demyelination

Synonyms: AGC1 deficiency · Mitochondrial aspartate-glutamate carrier 1 deficiency

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

Epileptic encephalopathy with global cerebral demyelination is a rare mitochondrial substrate carrier disorder characterized by severe muscular hypotonia, seizures (with or without episodic apnea) beginning in the first year of life, and arrested psychomotor development (affecting mainly motor skills). Severe spasticity with hyperreflexia has also been reported. Global cerebral hypomyelination is a characteristic imaging feature of this disease.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enEpileptic encephalopathy with global cerebral demyelinationAGC1 deficiency · Mitochondrial aspartate-glutamate carrier 1 deficiency
frEncéphalopathie épileptique avec démyélinisation cérébrale généraliséeDéficit en transporteur mitochondrial AGC1 · Déficit en transporteur mitochondrial aspartate-glutamate 1
deEpileptische Enzephalopathie mit globaler zerebraler DemyelinisierungAGC1-Mangel · Mitochondrialer Aspartat-Glutamat-Carrier 1-Mangel
esEncefalopatía epiléptica con desmielinización cerebral globalDeficiencia del transportador mitocondrial de aspartato-glutamato 1 · Deficiencia en AGC1
itEncefalopatia epilettica con demielinizzazione cerebrale generalizzataDeficit del trasportatore mitocondriale di aspartato-glutammato 1
nlEpileptische encefalopathie met gegeneraliseerde cerebrale demyelinisatieAGC1-deficiëntie · Mitochondriale aspartaat-glutamaattransporter 1-deficiëntie
ptDéfice do transportador 1 do aspartato glutamato mitocondrial
plEncefalopatia padaczkowa z całkowitą demielinizacją mózguNiedobór mitochondialnego nośnika 1 asparaginianu-glutaminianu
csEpileptická encefalopatie s globální demyelinizacíDeficit mitochondriálního přenašeče 1 pro aspartát-glutamát
ukЕпілептична енцефалопатія з глобальною церебральною демієлінізацієюДефіцит AGC1 · Дефіцит мітохондріального аспартат-глутаматного переносника 1
zh癫痫性脑病伴全脑皮质髓鞘形成减少线粒体天冬氨酸-谷氨酸载体1缺乏症
trYaygın serebral demiyelinizasyon ile seyreden epileptik ensefalopatiAGC1 eksikliği · Mitokondriyal aspartat-glutamat taşıyıcı 1 eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM612949Evalidated
ICD-10E72.0NTBTattributedvalidated
ICD-115C53.30NTBTindexvalidated
MONDO0013056Evalidated
UMLSC4512050Evalidated

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
SLC25A12Disease-causing germline mutation(s) inAssessedHGNC:10982ENSG000001158406036672q31.1solute carrier family 25 member 1219641205[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 casesWorldwideCase(s)Validated19641205[PMID]_24515575[PMID]_31403263[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated19641205[PMID]_24515575[PMID]_31403263[PMID]_ORPHANET

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