Abstract:
:X-linked forms of retinitis pigmentosa (XLRP) are among the most severe, because of their early onset, often leading to significant vision loss before the 4th decade. Previously, the RP15 locus was assigned to Xp22, by linkage analysis of a single pedigree with "X-linked dominant cone-rod degeneration." After clinical reevaluation of a female in this pedigree identified her as affected, we remapped the disease to a 19.5-cM interval (DXS1219-DXS993) at Xp11.4-p21.1. This new interval overlapped both RP3 (RPGR) and COD1. Sequencing of the previously published exons of RPGR revealed no mutations, but a de novo insertion was detected in the new RPGR exon, ORF15. The identification of an RPGR mutation in a family with a severe form of cone and rod degeneration suggests that RPGR mutations may encompass a broader phenotypic spectrum than has previously been recognized in "typical" retinitis pigmentosa.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Mears AJ,Hiriyanna S,Vervoort R,Yashar B,Gieser L,Fahrner S,Daiger SP,Heckenlively JR,Sieving PA,Wright AF,Swaroop Adoi
10.1086/303091subject
Has Abstractpub_date
2000-10-01 00:00:00pages
1000-3issue
4eissn
0002-9297issn
1537-6605pii
S0002-9297(07)63294-7journal_volume
67pub_type
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