Missense mutation of rhodopsin gene codon 15 found in Japanese autosomal dominant retinitis pigmentosa |
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Authors: | Keiko Fujiki Yoshihiro Hotta Akira Murakami Masaru Yoshii Mutsuko Hayakawa Takafumi Ichikawa Misako Takeda Kiyoshi Akeo Shigekuni Okisaka Atsushi Kanai |
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Affiliation: | (1) Department of Ophthalmology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113, Japan;(2) Department of Ophthalmology, National Defense Medical College, Tokorozawa 359, Japan |
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Abstract: | Summary Heterozygous missense mutation in codon 15 of the rhodopsin gene was detected in a patient with autosomal dominant retinitis pigmentosa (ADRP), where a transition of adenine to guanine at the second nucleotide in codon 15 (AATAGT), corresponding to a substitution of serine residue for asparagine residue (Asn-15-Ser) was detected. None of the remaining unrelated 42 ADRP, 24 autosomal recessive RP (ARRP) and 34 normal individuals had this alteration. Her funduscopic findings were sectorial in type similar to that of the patients with the same mutation found in an Australian pedigree (Sullivanet al., 1993). This study shows phenotypic similarities in patients with the same mutation of a different ancestry. |
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Keywords: | autosomal dominant retinitis pigmentosa (ADRP) missense mutation rhodopsin gene N-glycosylation site |
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