کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2048247 | 1074072 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A way to sense light intensity: Multiple-excitation of the BLUF photoreceptor TePixD suppresses conformational change
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 585, Issue 5, 9 March 2011, Pages 786–790
Journal: FEBS Letters - Volume 585, Issue 5, 9 March 2011, Pages 786–790
نویسندگان
Keisuke Tanaka, Yusuke Nakasone, Koji Okajima, Masahiko Ikeuchi, Satoru Tokutomi, Masahide Terazima,