Characterization of dnaJ Multigene Family in the Cyanobacterium Synechococcus elongatus PCC 7942
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概要
- 論文の詳細を見る
The genome of the cyanobacterium Synechococcus elongatus PCC 7942 contains four dnaJ homologs, which are classified into three types based on domain structure. Among these, dnaJ1, dnaJ2, and dnaJ3 are essential for normal growth, and hence we analyzed them with a view to characterizing their specificity. Expression analysis indicated that dnaJ2, which encodes type II DnaJ protein, exhibited typical responses to heat and high-light stresses. Their localization and ability to prevent aggregation of luciferase were also diverse, suggesting a possible functional differentiation of these proteins. Since the expression of dnaJ1, which belongs to conserved type I DnaJ, down-regulated under heat stress, the unique structure of DnaJ2 may be involved in stress responses of S. elongatus. Based on phylogenetic analysis, the diverse dnaJ family was assumed to have evolved its own specific functions in each cyanobacterial species.
- 社団法人 日本農芸化学会の論文
- 2007-04-23
著者
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WATANABE Satoru
Department of Biocybernetics, Niigata University
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Yoshikawa Hirofumi
Department of Bioscience, Tokyo University of Agriculture
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Sato Masumi
Department Of Bioscience Tokyo University Of Agriculture
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YAMAHATA Hikaru
Department of Bioscience, Tokyo University of Agriculture
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NIMURA MATSUNE
Department of Bioscience, Tokyo University of Agriculture
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Nimura Matsune
Department Of Bioscience Tokyo University Of Agriculture
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Yoshikawa Hirofumi
Dep. Of Bioscience Tokyo Univ. Of Agriculture
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Yoshikawa Hirofumi
Department Of Bioscience Tokyo University Of Agriculture
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Yamahata Hikaru
Department Of Bioscience Tokyo University Of Agriculture
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Yoshikawa Hirofumi
Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo
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Watanabe Satoru
Department Of Astronomy School Of Science The University Of Tokyo
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Watanabe Satoru
Department of Bioscience, Tokyo University of Agriculture
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