Cloning of the breakpoints of a deletion associated with choroidermia
- PMID: 1979308
- DOI: 10.1007/BF00205174
Cloning of the breakpoints of a deletion associated with choroidermia
Abstract
In order to characterize a previously described submicroscopic deletion encompassing (part of) the choroideremia (tapetochoroidal dystrophy: TCD) gene, we have cloned a 10.5-kb EcoRI fragment from the patient's DNA; this fragment carries the junction between both deletion endpoints ("junction fragment"). The distal portion of this fragment defines a new marker within, or just distal to, the TCD gene. This marker has been employed to confirm the diagnosis in several affected family members, and to rule out carriership in a female at risk with conspicuous clinical signs.