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Atsushi Tokuhisa
Researcher at Nara Institute of Science and Technology
Publications - 18
Citations - 1613
Atsushi Tokuhisa is an academic researcher from Nara Institute of Science and Technology. The author has contributed to research in topics: Diffraction & Resolution (electron density). The author has an hindex of 6, co-authored 16 publications receiving 1413 citations.
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Journal ArticleDOI
A compact X-ray free-electron laser emitting in the sub-ångström region
Tetsuya Ishikawa,Hideki Aoyagi,Takao Asaka,Yoshihiro Asano,Noriyoshi Azumi,T. Bizen,H. Ego,Kenji Fukami,Toru Fukui,Yukito Furukawa,Shunji Goto,Hirofumi Hanaki,Toru Hara,Teruaki Hasegawa,Takaki Hatsui,Atsushi Higashiya,T. Hirono,Naoyasu Hosoda,Miho Ishii,Takahiro Inagaki,Yuichi Inubushi,Toshiro Itoga,Yasumasa Joti,Masahiro Kago,Takashi Kameshima,Hiroaki Kimura,Yoichi Kirihara,Akio Kiyomichi,T. Kobayashi,Chikara Kondo,Togo Kudo,Hirokazu Maesaka,Xavier Maréchal,Takemasa Masuda,Shinichi Matsubara,Takahiro Matsumoto,Tomohiro Matsushita,Sakuo Matsui,Mitsuru Nagasono,Nobuteru Nariyama,Haruhiko Ohashi,Toru Ohata,Takashi Ohshima,Shun Ono,Yuji Otake,Choji Saji,Tatsuyuki Sakurai,Takahiro Sato,Kei Sawada,T. Seike,Katsutoshi Shirasawa,Takashi Sugimoto,Shinsuke Suzuki,Sunao Takahashi,Hideki Takebe,Kunikazu Takeshita,Kenji Tamasaku,Hitoshi Tanaka,Ryotaro Tanaka,Takashi Tanaka,Tadashi Togashi,Kazuaki Togawa,Atsushi Tokuhisa,Hiromitsu Tomizawa,Kensuke Tono,Shukui Wu,Makina Yabashi,Mitsuhiro Yamaga,Akihiro Yamashita,Kenichi Yanagida,Chao Zhang,Tsumoru Shintake,Hideo Kitamura,Noritaka Kumagai +73 more
TL;DR: In this paper, the SPring-8 Angstrom Compact Free-Electron Laser (CFEL) was used for sub-angstrom fundamental-wavelength lasing at the Tokyo National Museum.
Journal ArticleDOI
Classifying and assembling two-dimensional X-ray laser diffraction patterns of a single particle to reconstruct the three-dimensional diffraction intensity function: resolution limit due to the quantum noise.
TL;DR: A new algorithm is developed for reconstructing the high-resolution three-dimensional diffraction intensity function of a globular biological macromolecule from many quantum-noise-limited two-dimensional X-ray laser diffraction patterns, each for an unknown orientation.
Journal ArticleDOI
High-Precision Atomic Charge Prediction for Protein Systems Using Fragment Molecular Orbital Calculation and Machine Learning
Koichiro Kato,Koichiro Kato,Masuda Tomohide,Chiduru Watanabe,Naoki Miyagawa,Hideo Mizouchi,Shumpei Nagase,Kikuko Kamisaka,Kanji Oshima,Satoshi Ono,Hiroshi Ueda,Atsushi Tokuhisa,Ryo Kanada,Masateru Ohta,Mitsunori Ikeguchi,Yasushi Okuno,Kaori Fukuzawa,Teruki Honma +17 more
TL;DR: In this article, a neural network-based model was constructed to predict atomic partial charges with high accuracy at low computational cost using high-quality data acquired from quantum mechanics calculations using the fragment molecular orbital method.
Journal ArticleDOI
Non-gaussian behavior of elastic incoherent neutron scattering profiles of proteins studied by molecular dynamics simulation
TL;DR: To evaluate the origins of the non-Gaussian behavior of protein dynamics, a molecular dynamics simulation of staphylococcal nuclease was conducted and the dynamical heterogeneity was decomposed into three components: the component originating from the heterogeneity of the mean-square fluctuation, that from the anisotropy, and that from higher-order terms such as anharmonicity.
Journal ArticleDOI
Hybrid approach for structural modeling of biological systems from X-ray free electron laser diffraction patterns
TL;DR: A new hybrid approach for structural modeling using X-ray free electron laser (XFEL) diffraction patterns from non-crystalline biological samples is presented and it is shown that XFEL data can be used to study the conformational transitions of biological molecules.