Dynamic Expression of αB-Crystallin in Skeletal Muscle : Effects of Unweighting, Passive Stretch and Denervation
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概要
- 論文の詳細を見る
Twenty-two kDa protein specifically decreased in slow soleus muscle atrophy after 2-week hindlimb suspension (HS) of rats. This protein is abundant in soleus muscle but less in fast plantaris muscle. We purified this protein, determined the partial amino acid sequence using its proteolytic fragment, and found that the 22-kDa protein was a α-crystallin B chain with a 95% homology to bovine αB-crystallin. Further we demonstrated that αB-crystallin did not decrease in passively stretched slow muscle even under HS, and did markedly increase in denervated and stretched fast muscle under HS. These results suggest that the expression of αB-crystallin is dynamically related to the muscle plasticity.
著者
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Atomi Yoriko
Department Of Life Science Graduate School Of Arts And Science University Of Tokyo
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Yamada Shigeru
Department of Biological Science and Technology, Science University of Tokyo
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HONG Yeong-Man
Laboratory for Cell Technology, Ohtsuka Pharmaceutical Co., Ltd.
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ATOMI Yoriko
Department of Sports Sciences, College of Arts and Sciences, University of Tokyo
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YAMADA Shigeru
Department of Sports Sciences, College of Arts and Sciences, University of Tokyo
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