Mutations in TITF-1 are associated with benign hereditary chorea.
Hum Mol Genet
; 11(8): 971-9, 2002 Apr 15.
Article
in En
| MEDLINE
| ID: mdl-11971878
ABSTRACT
Benign hereditary chorea (BHC) (MIM 118700) is an autosomal dominant movement disorder. The early onset of symptoms (usually before the age of 5 years) and the observation that in some BHC families the symptoms tend to decrease in adulthood suggests that the disorder results from a developmental disturbance of the brain. In contrast to Huntington disease (MIM 143100), BHC is non-progressive and patients have normal or slightly below normal intelligence. There is considerable inter- and intrafamilial variability, including dysarthria, axial dystonia and gait disturbances. Previously, we identified a locus for BHC on chromosome 14 and subsequently identified additional independent families linked to the same locus. Recombination analysis of all chromosome 14-linked families resulted initially in a reduction of the critical interval for the BHC gene to 8.4 cM between markers D14S49 and D14S278. More detailed analysis of the critical region in a small BHC family revealed a de novo deletion of 1.2 Mb harboring the TITF-1 gene, a homeodomain-containing transcription factor essential for the organogenesis of the lung, thyroid and the basal ganglia. Here we report evidence that mutations in TITF-1 are associated with BHC.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Transcription Factors
/
Nuclear Proteins
/
Chorea
/
Mutation
Type of study:
Prognostic_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Hum Mol Genet
Journal subject:
BIOLOGIA MOLECULAR
/
GENETICA MEDICA
Year:
2002
Document type:
Article
Affiliation country:
Netherlands