A way to sense light intensity: Multiple-excitation of the BLUF photoreceptor TePixD suppresses conformational change
書誌事項
- 公開日
- 2011-02-08
- 資源種別
- journal article
- 権利情報
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- http://doi.wiley.com/10.1002/tdm_license_1.1
- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1016/j.febslet.2011.02.003
- 公開者
- Wiley
この論文をさがす
説明
TePixD, a cyanobacterial sensor of blue light using flavin adenine dinucleotide (FAD) (BLUF) which exists in a decamer form, was found to exhibit photoreaction sensitive to light intensity. While the number of excited molecules increased monotonically as the laser power increased, the number of decamers exhibiting a global conformational change initially increased, and then decreased with the increase of excitation intensity. This unusual power dependence was analyzed based on a Poisson distribution equation, demonstrating that decamers containing more than one excited monomer subunit do not undergo conformational change. Our results suggest that TePixD functions not only as a photosensor, but also by sensing light intensity.
収録刊行物
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- FEBS Letters
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FEBS Letters 585 (5), 786-790, 2011-02-08
Wiley