Bibliographic Information
- Other Title
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- 電子スピン共鳴法によるサブナノレベルの距離計測《若手研究者の紹介》
- デンシ スピン キョウメイホウ ニ ヨル サブナノレベル ノ キョリ ケイソク
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Abstract
type:text
Electron spin resonance (ESR) is a powerful tool for investigating electron spin and surrounding environments. One of the applications of ESR is to measure distances between two electron spins in proteins. Recently, we applied time-resolved ESR to a model avian compass system, a photo-induced radical pair of a tryptophan residue of Bovine Serum Albumin and anthraquinone-2,6-disulfonate (AQDS). The time-resolved ESR signal of the radical pair is separated by a strong interaction between two radicals. The spectral simulation based on quantum physics revealed that the distance between AQDS and tryptophan is 0.53 nm. This new finding is the first step towards clarifying the structure and dynamics of the AQDS molecule in the protein.
Journal
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- CACS FORUM : 埼玉大学研究機構科学分析支援センター機関誌
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CACS FORUM : 埼玉大学研究機構科学分析支援センター機関誌 12 15-17, 2021
埼玉大学研究機構科学分析支援センター