Joubert syndrome 9

General Information (adopted from Orphanet):

Synonyms, Signs: JBTS9 JOUBERT SYNDROME 9/15, DIGENIC, INCLUDED
Number of Symptoms 11
OrphanetNr:
OMIM Id: 612285
ICD-10:
UMLs:
MeSH:
MedDRA:
Snomed:

Prevalence, inheritance and age of onset:

Prevalence: No data available.
Inheritance: Autosomal recessive
23870701 [IBIS]
Age of onset:

Disease classification (adopted from Orphanet):

Parent Diseases: Joubert syndrome with oculorenal defect
 -Rare developmental defect during embryogenesis
 -Rare eye disease
 -Rare genetic disease
 -Rare neurologic disease
 -Rare renal disease

Symptom Information: Sort by abundance 

1
(HPO:0000510) Rod-cone dystrophy 266 / 7739
2
(HPO:0000483) Astigmatism 67 / 7739
3
(HPO:0000639) Nystagmus 555 / 7739
4
(HPO:0000518) Cataract 454 / 7739
5
(HPO:0001250) Seizures rare [HPO:skoehler] 1245 / 7739
6
(HPO:0001327) Photomyoclonic seizures 125 / 7739
7
(HPO:0001249) Intellectual disability 1089 / 7739
8
(OMIM) Mental retardation, mild to moderate 33 / 7739
9
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
10
(HPO:0002419) Molar tooth sign on MRI 27 / 7739
11
(HPO:0002119) Ventriculomegaly 253 / 7739

Associated genes:

CC2D2A;

ClinVar (via SNiPA)

Gene symbol Variation Clinical significance Reference

Additional Information:

Clinical Description OMIM Noor et al. (2008) ascertained a highly consanguineous Pakistani family segregating autosomal recessive mild to moderate mental retardation and retinitis pigmentosa (RP), with 4 living affected individuals; an additional family member with mental retardation was determined to be ...
Genotype-Phenotype Correlations OMIM Bachmann-Gagescu et al. (2012) identified biallelic pathogenic mutations in the CC2D2A gene in 20 patients from 17 unrelated families with Joubert syndrome. The patients were ascertained from a larger cohort of 209 families with the disorder, yielding a ...
Molecular genetics OMIM In affected members of a consanguineous Pakistani family with Joubert syndrome, Noor et al. (2008) identified homozygosity for a splice site mutation in the CC2D2A gene (612013.0001) that segregated with the phenotype. The mutation was not found in ...