raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:206559

POMT2-related limb-girdle muscular dystrophy R14

Synonyms: Autosomal recessive limb-girdle muscular dystrophy type 2N · LGMD type 2N · LGMD2N · Limb-girdle muscular dystrophy type 2N · POMT2-related LGMD R14

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

A form of limb-girdle muscular dystrophy characterized by proximal weakness (manifesting as slowness in running) presenting in infancy, along with calf hypertrophy, mild lordosis, scapular winging and normal intelligence (or mild intellectual disability).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPOMT2-related limb-girdle muscular dystrophy R14Autosomal recessive limb-girdle muscular dystrophy type 2N · LGMD type 2N · LGMD2N · Limb-girdle muscular dystrophy type 2N · POMT2-related LGMD R14
frDystrophie musculaire des ceintures associée à POMT2 R14Dystrophie musculaire des ceintures autosomique récessive type 2N · Dystrophie musculaire des ceintures type 2N · LGMD associée à POMT2 R14 · LGMD type 2N · LGMD2N
dePOMT2-assoziierte Gliedergürtelmuskeldystrophie R14Gliedergürtelmuskeldystrophie Typ 2N · Gliedergürtelmuskeldystrophie, autosomal-rezessive, Typ 2N · LGMD Typ 2N · LGMD2N · POMT2-assoziierte LGMD R14
esDistrofia muscular de cinturas R14 asociada a POMT2Distrofia muscular de cinturas autosómica recesiva tipo 2N · LGMD2N
itDistrofia muscolare dei cingoli, autosomica recessiva, tipo 2NLGMD2N
nlPOMT2-gerelateerde limb-girdle-spierdystrofie R14Autosomaal recessieve bekken- en schoudergordel-spierdystrofie type 2N · Autosomaal recessieve ledemaatgordel-spierdystrofie type 2N · Autosomaal recessieve limb-girdle-spierdystrofie type 2N · LGMD type 2N · LGMD2N · Limb-girdle-spierdystrofie type 2N · POMT2-gerelateerde LGMD R14
ptDistrofia muscular das cinturas dos membros R14 POMT2-relacionadaDistrofia muscular das cinturas dos membros autossómica recessiva tipo 2N
plAutosomalna recesywna dystrofia obręczowo-kończynowa typu 2NLGMD2N
csAutozomálně recesivní pletencová svalová dystrofie, typ 2NLGMD2N
ukPOMT2-асоційована кінцівково-поясна мязова дистрофія R14Аутосомно-рецесивна мязова дистрофія мязів пояса кінцівок, тип 2N · LGMD тип 2N · LGMD2N · Мязова дистрофія мязів поясу кінцівок, тип 2N · LGMD R14, повязаний з POMT2
zhPOMT2基因相关的肢带肌萎缩症R14型常染色体隐性遗传肢带型肌营养不良2N型
trPOMT2 -ilişkili ekstremite kavşak tip kas distrofisi R14LGMD2N · LGMD tipi 2N · POMT2-ilişkili LGMD R14 · Ekstremite-kavşak tipi kas distrofisi tip 2N · Otozomal çekinik ekinik ekstremite-kavşak tipi kas distrofisi tip 2N

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613158Evalidated
ICD-10G71.0NTBTattributedvalidated
ICD-118C70.41NTBTattributedvalidated
MONDO0013162Evalidated
UMLSC3150418Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
POMT2Disease-causing germline mutation(s) inAssessedHGNC:19743ENSG0000000983060743914q24.3protein O-mannosyltransferase 220301582[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_17923109[PMID]
Cases/families1 casesWorldwideCase(s)Validated17923109[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

20 annotations · validated 2019-09-16
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003236Elevated circulating creatine kinase concentration
HP:0006785Limb-girdle muscular dystrophy
HP:0030099Reduced muscle fiber alpha dystroglycan
Frequent (79-30%)
HP:0100543Cognitive impairment
HP:0002194Delayed gross motor development
HP:0003551Difficulty climbing stairs
HP:0030197Fatigable weakness of skeletal muscles
HP:0001288Gait disturbance
HP:0007126Proximal amyotrophy
HP:0001328Specific learning disability
Occasional (29-5%)
HP:0008981Calf muscle hypertrophy
HP:0001644Dilated cardiomyopathy
HP:0006913Frontal cortical atrophy
HP:0001263Global developmental delay
HP:0002540Inability to walk
HP:0025169Left ventricular systolic dysfunction
HP:0011712Right bundle branch block
HP:0003691Scapular winging
HP:0003697Scapuloperoneal amyotrophy
HP:0002119Ventriculomegaly

Run the differential on the 3 obligate / very frequent terms

Annotation source: 29175898[PMID]_17878207[PMID]_20301582[PMID]_17923109[PMID]

7

Sources for this card