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J Med Genet. 1996 Oct;33(10):869-72.

Conclusive evidence for a distinct congenital stationary night blindness locus in Xp21.1.

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  • 1Department of Ophthalmogenetics, The Netherlands Ophthalmic Research Institute, Amsterdam, The Netherlands.

Abstract

X linked congenital stationary night blindness (CSNBX) is a non-progressive retinal disorder characterised by decreased visual acuity and disturbance of night vision. CSNBX appears to be not only clinically but also genetically heterogeneous. On studying a single large family, we recently suggested the presence of a distinct locus for CSNBX in Xp21.1. Here, we describe the results of a linkage analysis in another large CSNBX family, which confirms this finding. Thus, the data presented here provide conclusive evidence for a distinct CSNBX locus in Xp21.1, closely linked to the X linked retinitis pigmentosa type 3 gene. The results combined with other published results indicate the order Xpter-DXS451-DMD-DYS1-(DXS1110, CSNBX1, XLRP3)-DXS7-(CSNBX2, XLRP2)-DXS14-Xcen.

PMID:
8933343
[PubMed - indexed for MEDLINE]
PMCID:
PMC1050769
Free PMC Article
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