Symbol
| SPCH1
|
Location
| 7q31.1
|
Name
|
severe speech-language disorder 1 |
Other name(s)
|
developmental verbal dyspraxia, chilhood apraxia of speech |
Corresponding gene
|
FOXP2
|
Other symbol(s)
| DVD, CAS
|
Main clinical features
|
verbal dyspraxia or childhood apraxia of speech i.e. problems sequencing the precise movements of tongue, lips, jaw and palate that contribute to intelligible speech
difficulties with learning and production of non-speech sequences involving the orofacial musculature (orofacial dyspraxia)
broad profile of linguistic defects affecting oral and written language |
Genetic determination
| autosomal dominant |
| chromosomal |
Related entries
| DEL7Q31
|
Function/system disorder
| neurology |
Type
| other
|
Gene mutation | Chromosome rearrangement | Effect | Comments |
|
---|
various types
|  
| haploinsufficiency
| truncating mutations, lacking the leu-zip, Zn2+ finger, and forkhead domains demonstrated an aggregated cytoplasmic localization
|  
| deletion
| haploinsufficiency
| including FOXP2
|  
| translocation
| haploinsufficiency
| translocations interrupting FOXP2
| |