Title |
Functional and comparative genomics analyses of pmp22 in medaka fish
|
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Published in |
BMC Neuroscience, June 2009
|
DOI | 10.1186/1471-2202-10-60 |
Pubmed ID | |
Authors |
Junji Itou, Mikita Suyama, Yukio Imamura, Tomonori Deguchi, Kazuhiro Fujimori, Shunsuke Yuba, Yutaka Kawarabayasi, Takashi Kawasaki |
Abstract |
Pmp22, a member of the junction protein family Claudin/EMP/PMP22, plays an important role in myelin formation. Increase of pmp22 transcription causes peripheral neuropathy, Charcot-Marie-Tooth disease type1A (CMT1A). The pathophysiological phenotype of CMT1A is aberrant axonal myelination which induces a reduction in nerve conduction velocity (NCV). Several CMT1A model rodents have been established by overexpressing pmp22. Thus, it is thought that pmp22 expression must be tightly regulated for correct myelin formation in mammals. Interestingly, the myelin sheath is also present in other jawed vertebrates. The purpose of this study is to analyze the evolutionary conservation of the association between pmp22 transcription level and vertebrate myelin formation, and to find the conserved non-coding sequences for pmp22 regulation by comparative genomics analyses between jawed fishes and mammals. |
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