Article Text
Short report
Interstitial deletion in Xp22.3 is associated with X linked ichthyosis, mental retardation, and epilepsy
Abstract
We describe monozygotic male twins with an interstitial deletion of Xp22.3 including the steroid sulphatase gene (STS). The twins had X linked ichthyosis, X linked mental retardation, and epilepsy. A locus for X linked mental retardation has been assigned to a region betweenSTS and DXS31 spanning approximately 3 Mb. Recently the locus was further refined to an approximately 1 Mb region between DXS1060 and GS1. By PCR analysis of flanking STS gene markers in our patients we succeeded in narrowing down the locus to between DXS6837 andGS1.
- Xp22.3 deletion
- X linked mental retardation
- X linked ichthyosis
- epilepsy
- Rudd syndrome