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Mutation scanning for the clock-related genes in circadian rhythm sleep disorders Takashi EBISAWA 1 1Department of Psychiatry, Saitama Medical School Keyword: 睡眠覚醒リズム障害 , 時計遺伝子 , 遺伝子多型 pp.891-897
Published Date 2000/12/10
DOI https://doi.org/10.11477/mf.1431901201
  • Abstract
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Recent progress in chronobiology enabled us to elucidate the molecular mechanism of circadian rhythm sleep disorders. We are analyzing clock-related genes for mutations in the disorders. Two missense mutations, R54W and A157V, have been found in melatonin la receptor gene. Carrier frequencies of the mutations in non-24-hour sleep-wake syndrome were about 3-fold and 2-fold higher, respectively, compared to those in normal controls. When expressed in COS-7 cells, R54W mutant receptor showed significantly reduced Bmax and slightly enhanced affinity compared to the wild type receptor.


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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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