raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:308380

Methylcobalamin deficiency type cblDv1

Synonyms: Functional methionine synthase deficiency type cblDv1

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal recessive
Status
active

This disease is described under Homocystinuria without methylmalonic aciduria

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMethylcobalamin deficiency type cblDv1Functional methionine synthase deficiency type cblDv1
frDéficit en méthylcobalamine type cblDv1Déficit fonctionnel en méthionine synthase type cblDv1
deMethylcobalamin-Mangel Typ cblDv1Funktionaler Methionin-Synthase-Mangel Typ cblDv1
esDeficiencia de metilcobalamina tipo cblDv1Deficiencia funcional de metionina sintasa tipo cblDv1
itDeficit di metilcobalamina, tipo cblDv1Deficit funzionale di metionina sintasi, tipo cblDv1
nlMethylcobalaminedeficiëntie type cblDv1Functionele methioninesynthasedeficiëntie type cblDv1
ptDéfice de metilcobalamina tipo cblDv1
plNiedobór metylokobalaminy typu cblDv1Funkcjonalny Niedobór syntazy metioniny typu cblDv1
csDeficit methylkobalaminu, typ cblDv1Deficit funkční methioninsyntázy, typ cblDv1
ukДефіцит метилкобаламіну, тип cblDv1Функціональна недостатність метіонінсинтетази, тип cblDv1
zh乙钴胺缺乏cblDv1型功能性甲硫氨酸合酶缺乏cblDv1型
trMetilkobalamin eksikliği tipi cblDv1Fonksiyonel metiyonin sentaz eksikliği tip cblDv1
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM277410NTBTvalidated
ICD-10E72.1NTBTattributedvalidated
ICD-115C50.BNTBTindexvalidated
MONDO0017683Evalidated
UMLSC5679956Evalidated

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
MMADHCDisease-causing germline mutation(s) inAssessedHGNC:25221ENSG000001682886119352q23.2metabolism of cobalamin associated D18385497[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card