検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

QENS of protein solutions measured by the TOF near backscattering spectrometer DNA

飛行時間背面散乱型分光器DNAによる蛋白質溶液の中性子準弾性散乱

中川 洋   ; 齋尾 智英*; 小田 隆*; 佐藤 衛*; 井上 倫太郎*; 杉山 正明*; 富永 大輝*; 川北 至信  

Nakagawa, Hiroshi; Saio, Tomohide*; Oda, Takashi*; Sato, Mamoru*; Inoue, Rintaro*; Sugiyama, Masaaki*; Tominaga, Taiki*; Kawakita, Yukinobu

蛋白質は溶液中で揺らいでおり、そのダイナミクスが生物機能に重要である。蛋白質は空間的にも時間的にも構造とダイナミクスに階層性を持つ。この研究では、マルチドメイン蛋白質であるMurDの内部運動を観測するために、飛行時間背面散乱型分光器DNAで中性子淳弾性散乱を測定した。Hefは天然変性蛋白質であり、固い折り畳み構造を失っていて、折り畳み蛋白質に比べて柔軟な構造を持っている。蛋白質溶液のQENSの解析方法や、折り畳み蛋白質と天然変性蛋白質のダイナミクスの特徴を議論する。

Protein is thermally fluctuating in solution, and the dynamics is essential for its biological functions. A protein has hierarchal structure and dynamics in temporal and spatial scale. In this work, QENS of a multi-domain protein, MurD, were measured by the TOF near backscattering spectrometer DNA in order to observe the internal motions. Hef is classified as an intrinsically disordered protein, which lost the rigid folded domain structure, and then have a more flexible structure than a folded protein. We will discuss the data treatment and analytical method of QENS of protein solutions, and characteristic dynamical features of folded rigid and disordered flexible proteins in the presentation.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.