raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:832

Succinyl-CoA:3-oxoacid CoA transferase deficiency

Synonyms: OXCT1 deficiency · SCOT deficiency · Succinyl-CoA acetoacetate transferase deficiency · Succinyl-CoA:3-ketoacid CoA transferase deficiency

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

A rare, genetic disorder in ketone body utilization characterized by severe, potentially fatal intermittent episodes of ketoacidosis.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSuccinyl-CoA:3-oxoacid CoA transferase deficiencyOXCT1 deficiency · SCOT deficiency · Succinyl-CoA acetoacetate transferase deficiency · Succinyl-CoA:3-ketoacid CoA transferase deficiency
frDéficit en succinyl-CoA:3-oxoacide CoA transféraseDéficit en OXCT1 · Déficit en SCOT · Déficit en succinyl-CoA acétoacétate transférase · Déficit en succinyl-CoA:3-cétoacide CoA transférase
deSuccinyl-CoA:3-Ketosäure-CoA-Transferase-MangelOXCT1-Mangel · SCOT-Mangel · Succinyl-CoA Acetoacetat Transferase-Mangel · Succinyl-CoA:3-Oxosäure-CoA-Transferase-Mangel
esDeficiencia de succinil-CoA: 3 oxoácido CoA transferasaDeficiencia de OXCT1 · Deficiencia de SCOT · Deficiencia de succinil-CoA acetoacetato transferasa · Deficiencia de succinil-CoA:3-cetoácido-CoA transferasa
itDeficit di succinil-CoA:3-oxoacido CoA transferasiDeficit di OXCT1 · Deficit di SCOT · Deficit di succinil-CoA acetoacetato transferasi · Deficit di succinil-CoA:3-chetoacido CoA transferasi
nlDeficiëntie van succinyl-CoA:3-oxozuur-CoA-transferaseDeficiëntie van succinyl-CoA-acetoacetaattransferase · Deficiëntie van succinyl-CoA:3-ketozuur-CoA-transferase · OXCT1-deficiëntie · SCOT-deficiëntie
ptDeficiência de succinil-CoA:3 oxoácida CoA transferaseDeficiência OXCT1 · Deficiência SCOT · Deficiência de succinil-CoA acetoacetato transferase
plNiedobór transferazy sukcynylo-CoA:3-ketokwasu CoANiedobór OXCT1 · Niedobór SCOT · Niedobór transferazy acetoacetatu sukcynylo-CoA · Niedobór transferazy sukcynylo-CoA:3-ketokwasu CoA
csDeficit sukcinyl-CoA:3-ketokyselina-CoA transferázyDeficit OXCT1 · Deficit SCOT · Deficit sukcinyl-CoA acetoacetát transferázy · Deficit sukcinyl-CoA:3-oxokyselina-CoA transferázy
ukДефіцит сукциніл-КоА:3-оксокислої КоА-трансферазиДефіцит OXCT1 · Дефіцит SCOT · Дефіцит сукциніл-КоА ацетоацетаттрансферази · Дефіцит сукциніл-КоА:3-кетокислої КоА-трансферази
zh琥珀酰辅酶A:3酮酸辅酶A转移酶缺乏症琥珀酰辅酶A-酮酸辅酶A转移酶缺乏症
trSüksinil-CoA: 3-ketoasit CoA transferaz eksikliğiSCOT eksikliği · OXCT1 eksikliği · Süksinil-CoA asetoasetat transferaz eksikliği · Süksinil-CoA: 3-oksoasit CoA transferaz eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM245050Evalidated
ICD-10E71.3NTBTattributedvalidated
ICD-115C52.02NTBTindexvalidated
MONDO0009492Evalidated
MeSHC537527Evalidated
UMLSC0342792Evalidated
GARD4774Evalidated

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 (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
OXCT1Disease-causing germline mutation(s) inAssessedHGNC:8527ENSG000000837206014245p13.13-oxoacid CoA-transferase 123420214[PMID]_21296660[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families32 casesWorldwideCase(s)Validated[EXPERT]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_[EXPERT]

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

14 annotations · validated 2025-05-16
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001993Ketoacidosis
HP:6000361Reduced succinyl-CoA:3-oxoacid-CoA transferase activity in cultured fibroblasts
Frequent (79-30%)
HP:0410175Hyperketonemia
HP:0002919Ketonuria
HP:0002789Tachypnea
HP:0002013Vomiting
Occasional (29-5%)
HP:0001640Cardiomegaly
HP:0001259Coma
HP:0004325Decreased body weight
HP:0001944Dehydration
HP:0001531Failure to thrive in infancy
HP:0001252Hypotonia
HP:0001254Lethargy
HP:0002018Nausea

Run the differential on the 2 obligate / very frequent terms

Annotation source: 34765403[PMID]_33596448[PMID]_21296660[PMID]_9392403[PMID]

7

Sources for this card