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Photon flux density-dependent gene expression in Synechocystis sp PCC 6803 is regulated by a small, redox-responsive, LuxR-type regulator
https://sucra.repo.nii.ac.jp/records/12609
https://sucra.repo.nii.ac.jp/records/12609ae63b445-820b-4ae7-918b-ba1571529194
名前 / ファイル | ライセンス | アクション |
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A1002033.pdf (2.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-04-11 | |||||
タイトル | ||||||
タイトル | Photon flux density-dependent gene expression in Synechocystis sp PCC 6803 is regulated by a small, redox-responsive, LuxR-type regulator | |||||
言語 | ||||||
言語 | eng | |||||
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 |
日原, 由香子
× 日原, 由香子 |
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著者 ローマ字 | ||||||
Hihara, Yukako | ||||||
著者 ローマ字 | ||||||
Nakamura, Kinu | ||||||
著者 所属 | ||||||
埼玉大学大学院理工学研究科 | ||||||
著者 所属(別言語) | ||||||
Graduate School of Science and Engineering, Saitama University | ||||||
書誌情報 |
Journal of biological chemistry 巻 281, 号 48, p. 36758-36766, 発行日 2006 |
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年月次 | ||||||
2006-12 | ||||||
出版者名 | ||||||
出版者 | American Society for Biochemistry and Molecular Biology | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00219258 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1074/jbc.M606797200 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The expression of many cyanobacterial genes is regulated by the redox state of the photosynthetic electron transport chain. However, factors involved in this regulation have not been identified. In this study, we demonstrate that a small LuxR-type regulator in Synechocystis sp. PCC 6803, PedR (Ss10564), senses the activity of photosynthetic electron transport to achieve the photon flux density-dependent transcriptional regulation. PedR is constitutively expressed in Synechocystis cells and exists as a dimer bridged by intermolecular disulfide bond(s). It activates the expression of chlL, chlN, chlB, and slr1957 and represses that of ndhD2, rpe, and the pedR (ssl0564)-sll0296 operon under conditions where the activity of photosynthetic electron transport is low. When the supply of reducing equivalents from photosynthetic electron transport chain increases upon the elevation of photon flux density, PedR is inactivated through its conformational change within 5 min. This mechanism enables transient induction or repression of the target genes in response to sudden changes in light environment. The fact that orthologs of PedR are conserved among all the cyanobacterial genomes sequenced so far indicates that this type of transcriptional regulation is essential for cyanobacteria to acclimate to changing environments. | |||||
注記 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Copyright notice. c2006 Journal of Biological Chemistry. All rights reserved. Source published by American Physical Society. | |||||
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 | 2007-03-05 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1002033 |