raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:99946

Autosomal dominant Charcot-Marie-Tooth disease type 2A1

Synonyms: CMT2A1

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Childhood
Status
active

A form of axonal Charcot-Marie-Tooth disease, a peripheral sensorimotor neuropathy, presenting with a more prominent muscle weakness in lower than upper limbs and frequent postural tremor.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant Charcot-Marie-Tooth disease type 2A1CMT2A1
frMaladie de Charcot-Marie-Tooth autosomique dominante type 2A1= en
deCharcot-Marie-Tooth-Krankheit, autosomal-dominante, Typ 2A1= en
esEnfermedad de Charcot-Marie-Tooth autosómica dominante tipo 2A1
itMalattia di Charcot-Marie-Tooth autosomica dominante, tipo 2A1= en
nlAutosomaal dominante ziekte van Charcot-Marie-Tooth type 2A1= en
ptDoença de Charcot-Marie-Tooth autossómica dominante tipo 2A1
plAutosomalna dominująca choroba Charcota, Mariego i Tootha typu 2A1= en
csAutozomálně dominantní Charcotova-Marieova-Toothova nemoc, typ 2A1CMT2A1 · Autozomálně dominantní Charcot-Marie-Toothova nemoc, typ 2A1
ukАутосомно-домінантна хвороба Шарко-Марі-Тута, тип 2А1= en
zh常染色体显性遗传腓骨肌萎缩症2A1型= en
trOtozomal dominant Charcot-Marie-Tooth hastalığı tip 2A1= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM118210Evalidated
ICD-10G60.0NTBTattributedvalidated
ICD-118C20.1NTBTindexvalidated
MONDO0007308Evalidated
MeSHC566138Evalidated
UMLSC1861678Evalidated
GARD1248Evalidated

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
KIF1BDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:16636ENSG000000545236059951p36.22kinesin family member 1B11389829[PMID]_20301462[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families1 familiesWorldwideFamily(ies)Validated9409358[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_9409358[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