raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:86812

POMT1-related limb-girdle muscular dystrophy R11

Synonyms: Autosomal recessive limb-girdle muscular dystrophy type 2K · LGMD type 2K · LGMD2K · Limb-girdle muscular dystrophy type 2K · Limb-girdle muscular dystrophy-intellectual disability syndrome · POMT1-related LGMD R11

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

A form of limb-girdle muscular dystrophy characterized by the onset of slowly progressive proximal muscle weakness during childhood (with fatigue and difficulty running and climbing stairs) and developmental delay. Mild intellectual deficit and microcephaly, without any obvious structural brain abnormality, are found in all patients. Mild pseudohypertrophy and joint contractures of the ankles have also been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPOMT1-related limb-girdle muscular dystrophy R11Autosomal recessive limb-girdle muscular dystrophy type 2K · LGMD type 2K · LGMD2K · Limb-girdle muscular dystrophy type 2K · Limb-girdle muscular dystrophy-intellectual disability syndrome · POMT1-related LGMD R11
frDystrophie musculaire des ceintures associée à POMT1 R11Dystrophie musculaire des ceintures autosomique récessive type 2K · Dystrophie musculaire des ceintures type 2K · LGMD associée à POMT1 R11 · LGMD type 2K · LGMD2K · Syndrome de dystrophie musculaire des ceintures-déficience intellectuelle
dePOMT1-assoziierte Gliedergürtelmuskeldystrophie R11LGMD Typ 2K · LGMD2K · POMT1-assoziierte LGMD R11 · Gliedergürtelmuskeldystrophie Typ 2K · Gliedergürtelmuskeldystrophie, autosomal-rezessive, Typ 2K · Gliedergürtelmuskeldystrophie-Intelligenzminderung-Syndrom
esDistrofia muscular de cinturas R11 asociada a POMT1Distrofia muscular de cinturas autosómica recesiva tipo 2K · Distrofia muscular de cinturas tipo 2K · LGMD R11 asociada a POMT1 · LGMD tipo 2K · LGMD2K · Síndrome de distrofia muscular de cinturas-discapacidad intelectual
itDistrofia muscolare dei cingoli R11 correlata a POMT1Sindrome distrofia muscolare dei cingoli-disabilità intellettiva · Distrofia muscolare dei cingoli tipo 2K · Distrofia muscolare dei cingoli autosomica recessiva tipo 2K · LGMD2K · LGMD tipo 2K · LGMD R11 correlata a POMT1
nlPOMT1-gerelateerde limb-girdle-spierdystrofie R11Autosomaal recessieve bekken- en schoudergordel-spierdystrofie type 2K · Autosomaal recessieve ledemaatgordel-spierdystrofie type 2K · Autosomaal recessieve limb-girdle-spierdystrofie type 2K · LGMD type 2K · LGMD2K · Limb-girdle-spierdystrofie - intellectuele achterstand-syndroom · Limb-girdle-spierdystrofie type 2K · POMT1-gerelateerde LGMD R11
ptDistrofia muscular das cinturas dos membros R11 POMT1-relacionadaDistrofia muscular das cinturas dos membros autossómica recessiva tipo 2K · Distrofia muscular das cinturas dos membros tipo 2K · LGMD R11 POMT1-relacionada · LGMD tipo 2K · LGMD2K · Síndrome de istrofia muscular das cinturas dos membros-perturbação do desenvolvimento intelectual
plAutosomalna recesywna dystrofia mięśniowa obręczowo-kończynowa typu 2KDystrofia obręczowo-kończynowa- niepełnosprawność intelektualna · LGMD2K
csAutozomálně recesivní pletencová svalová dystrofie, typ 2KLGMD2K · Syndrom zahrnující pletencovou svalovou dystrofii a mentální retardaci
ukPOMT1-асоційована кінцівково-поясна мязова дистрофія R11Аутосомно-рецесивна мязова дистрофія мязів кінцівок, тип 2К · LGMD тип 2K · LGMD2K · Мязова дистрофія скелетних мязів кінцівок, тип 2К · Синдром мязової дистрофії опорно-рухового апарату та інтелектуальної недостатності · LGMD R11, повязаний з POMT1
zhPOMT1相关肢带肌营养不良R11型肢带型肌营养不良-智力障碍综合征
trPOMT1-ilişkili ekstremite-kavşak tipi kas distrofisi R11LGMD2K · LGMD tipi 2K · POMT1-ilgili LGMD R11 · Ekstremite-kavşak tipi kas distrofisi tip 2K · Otozomal Çekinik ekstremite-kavşak tipi kas distrofisi tip 2K · Ekstremite-kavşak tipi kas distrofisi-zihinsel yetersizlik sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM609308Evalidated
ICD-10G71.0NTBTattributedvalidated
ICD-118C70.41NTBTattributedvalidated
MONDO0012248Evalidated
UMLSC1836373Evalidated

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
POMT1Disease-causing germline mutation(s) inAssessedHGNC:9202ENSG000001307146074239q34.13protein O-mannosyltransferase 120301582[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—EuropeClass onlyNot yet validatedORPHANET

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

32 annotations · validated 2018-07-16
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003551Difficulty climbing stairs
HP:0001288Gait disturbance
Frequent (79-30%)
HP:0008981Calf muscle hypertrophy
HP:0003687Centrally nucleated skeletal muscle fibers
HP:0000750Delayed speech and language development
HP:0003236Elevated circulating creatine kinase concentration
HP:0003391Gowers sign
HP:0003557Increased variability in muscle fiber diameter
HP:0001249Intellectual disability
HP:0002938Lumbar hyperlordosis
HP:0000252Microcephaly
HP:0003560Muscular dystrophy
HP:0003701Proximal muscle weakness
HP:0003733Thigh hypertrophy
HP:0002515Waddling gait
Occasional (29-5%)
HP:0002027Abdominal pain
HP:0000729Autistic behavior
HP:0001638Cardiomyopathy
HP:0012735Cough
HP:0002094Dyspnea
HP:0003388Easy fatigability
HP:0003700Generalized amyotrophy
HP:0010794Impaired visuospatial constructive cognition
HP:0001712Left ventricular hypertrophy
HP:0003325Limb-girdle muscle weakness
HP:0003198Myopathy
HP:0001319Neonatal hypotonia
HP:0002098Respiratory distress
HP:0002650Scoliosis
HP:0003306Spinal rigidity
HP:0031108Triceps weakness
HP:0003803Type 1 muscle fiber predominance

Run the differential on the 2 obligate / very frequent terms

Annotation source: 14678799[PMID]_20065251[PMID]_22549409[PMID]

7

Sources for this card