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A small heat-shock protein confers stress tolerance and stabilizes thylakoid membrane proteins in cyanobacteria under oxidative stress
https://sucra.repo.nii.ac.jp/records/13412
https://sucra.repo.nii.ac.jp/records/13412da7b9385-f523-4e3d-9b69-806fd0d68ae5
名前 / ファイル | ライセンス | アクション |
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A1002862.pdf (1.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-05-25 | |||||
タイトル | ||||||
タイトル | A small heat-shock protein confers stress tolerance and stabilizes thylakoid membrane proteins in cyanobacteria under oxidative stress | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cyanobacterium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Oxidative stress | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Photosystem | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Phycobilisome | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Phycocyanin | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Small heat-shock protein | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Sakthivel, Kollimalai
× Sakthivel, Kollimalai× Watanabe, Tatsuro× 仲本, 準 |
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著者 ローマ字 | ||||||
Sakthivel, Kollimalai | ||||||
著者 ローマ字 | ||||||
Watanabe, Tatsuro | ||||||
著者 ローマ字 | ||||||
Nakamoto, Hitoshi | ||||||
著者 所属 | ||||||
著者 所属 | ||||||
著者 所属 | ||||||
埼玉大学大学院理工学研究科生命科学部門 | ||||||
著者 所属(別言語) | ||||||
著者 所属(別言語) | ||||||
著者 所属(別言語) | ||||||
Graduate School of Science and Engineering, Saitama University | ||||||
書誌情報 |
ARCHIVES OF MICROBIOLOGY 巻 191, 号 4, p. 319-328, 発行日 2009 |
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年月次 | ||||||
2009-4 | ||||||
出版者名 | ||||||
出版者 | SPRINGER | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03028933 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1007/s00203-009-0457-z | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Small heat-shock proteins are molecular chaperones that bind and prevent aggregation of nonnative proteins. They also associate with membranes. In this study, we show that the small heat-shock protein HspA plays a protective role under oxidative stress in the cyanobacterium Synechococcus elongatus strain ECT16-1, which constitutively expresses HspA. Compared with the reference strain ECT, ECT16-1 showed much better growth and viability in the presence of hydrogen peroxide. Under the peroxide stress, pigments in thylakoid membrane, chlorophyll, carotenoids, and phycocyanins, were continuously reduced in ECT, but in ECT16-1 they decreased only during the first 24 h of stress; thereafter no further reduction was observed. For comparison, we analyzed a wild type and an hspA deletion strain from Synechocystis sp. PCC 6803 and found that lack of hspA significantly affected the viability of the cell and the pigment content in the presence of methyl viologen, suggesting that HspA stabilizes membrane proteins such as the photosystems and phycobilisomes from oxidative damage. In vitro pull down assays showed a direct interaction of HspA with components of phycobilisomes. These results show that HspA and small heat-shock proteins in general play an important role in the acclimation to oxidative stress in cyanobacteria. | |||||
版 | ||||||
[著者版] | ||||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2009-05-25 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1002862 |