March 1997
Volume 38, Issue 3
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Articles  |   March 1997
Evaluation of the human gene encoding recoverin in patients with retinitis pigmentosa or an allied disease.
Author Affiliations
  • A H Parminder
    Ocular Molecular Genetics Institute, Massachusetts Eye and Ear Infirmary, Boston 02114-3096, USA.
  • A Murakami
    Ocular Molecular Genetics Institute, Massachusetts Eye and Ear Infirmary, Boston 02114-3096, USA.
  • G Inana
    Ocular Molecular Genetics Institute, Massachusetts Eye and Ear Infirmary, Boston 02114-3096, USA.
  • E L Berson
    Ocular Molecular Genetics Institute, Massachusetts Eye and Ear Infirmary, Boston 02114-3096, USA.
  • T P Dryja
    Ocular Molecular Genetics Institute, Massachusetts Eye and Ear Infirmary, Boston 02114-3096, USA.
Investigative Ophthalmology & Visual Science March 1997, Vol.38, 704-709. doi:
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      A H Parminder, A Murakami, G Inana, E L Berson, T P Dryja; Evaluation of the human gene encoding recoverin in patients with retinitis pigmentosa or an allied disease.. Invest. Ophthalmol. Vis. Sci. 1997;38(3):704-709.

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Abstract

PURPOSE: To determine whether defects in the human recoverin gene cause retinitis pigmentosa (RP) or an allied disease such as Usher syndrome, Leber congenital amaurosis, or the Bardet-Biedl syndrome. METHODS: Single-strand conformation polymorphism analysis and direct genomic sequencing techniques were used to screen 596 unrelated patients, comprising 167 patients with dominant RP, 168 with recessive RP, and 261 with an allied disease. RESULTS: Four sequence variants were discovered. The first was a missense change (Ala200Thr) found in one family with autosomal dominant RP and in one family with autosomal recessive RP; it did not segregate with disease. The second was a silent, single-base variation affecting codon Ser24 with a minor allele frequency of approximately 0.5%. The third was a silent, single-base variation affecting codon Va1122. The fourth was a single-nucleotide substitution in intron 2, 11 bp upstream of exon 3. CONCLUSIONS: The authors found no evidence that mutations in the recoverin gene are a cause of RP or another of the hereditary retinal diseases studied. The human phenotype associated with mutations of the recoverin gene remains unknown.

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