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Journal Articles

Crystal growth procedure of HIV-1 protease-inhibitor KNI-272 complex for neutron structural analysis at 1.9 ${AA}$ resolution

Shimizu, Noriko*; Sugiyama, Shigeru*; Maruyama, Mihoko*; Takahashi, Yoshinori*; Adachi, Motoyasu; Tamada, Taro; Hidaka, Koshi*; Hayashi, Yoshio*; Kimura, Toru*; Kiso, Yoshiaki*; et al.

Crystal Growth & Design, 10(7), p.2990 - 2994, 2010/06

 Times Cited Count:11 Percentile:71.95(Chemistry, Multidisciplinary)

We report crystal growth of human immunodeficiency virus 1 protease (HIV PR) in a complex with its inhibitor KNI-272 by six different methods. Comparative analysis indicates that top-seeded solution growth (TSSG) and TSSG combined with the floating and stirring technique (TSSG-FAST) are efficient strategies for rapidly obtaining large single crystals and effectively preventing polycrystallization of the seed crystal. Neutron diffraction analysis confirmed that the crystalobtained by TSSG is a high-quality single crystal. Furthermore, crystal shape was observed to be influenced by solution flow, suggesting that the degree of supersaturation significantly affects the crystal growth direction of HIV PR complex. This finding implies that the shape of the HIV PR complex crystal might be controlled by the solution flow rate.

Journal Articles

Crystallization and preliminary neutron diffraction studies of HIV-1 protease cocrystallized with inhibitor KNI-272

Matsumura, Hiroyoshi*; Adachi, Motoyasu; Sugiyama, Shigeru*; Okada, Shino*; Yamakami, Megumi*; Tamada, Taro; Hidaka, Koshi*; Hayashi, Yoshio*; Kimura, Toru*; Kiso, Yoshiaki*; et al.

Acta Crystallographica Section F, 64(11), p.1003 - 1006, 2008/11

 Times Cited Count:17 Percentile:77.84(Biochemical Research Methods)

This paper reports the crystallization and preliminary neutron diffraction measurements of HIV-1 protease, a potential target for anti-HIV therapy, complexed with an inhibitor (KNI-272). The aim of this neutron diffraction study is to obtain structural information about the H atoms and to determine the protonation states of the residues within the active site. The crystal was grown to a size of 1.4 mm$$^{3}$$ by repeated macroseeding and a slow-cooling method using a two-liquid system. Neutron diffraction data were collected at room temperature using a BIX-4 diffractometer at the JRR-3 research reactor of the Japan Atomic Energy Agency (JAEA). The data set was integrated and scaled to 2.3 ${AA}$ resolution in space group P2(1)2(1)2, with unit-cell parameters a = 59.5, b = 87.4, c = 46.8 ${AA}$.

Journal Articles

Research and development of nuclear fusion

Ushigusa, Kenkichi; Seki, Masahiro; Ninomiya, Hiromasa; Norimatsu, Takayoshi*; Kamada, Yutaka; Mori, Masahiro; Okuno, Kiyoshi; Shibanuma, Kiyoshi; Inoue, Takashi; Sakamoto, Keishi; et al.

Genshiryoku Handobukku, p.906 - 1029, 2007/11

no abstracts in English

Journal Articles

Intelligible seminor on fusion reactors, 1; Introduction to fusion reactors

Ueda, Yoshio*; Inoue, Takashi; Kurihara, Kenichi

Nihon Genshiryoku Gakkai-Shi, 46(12), p.845 - 852, 2004/12

no abstracts in English

Journal Articles

Electrical insulation and conduction coating for fusion experimental devices

Onozuka, Masanori*; Tsujimura, Seiji*; Toyoda, Masahiko*; Inoue, Masahiko*; Abe, Tetsuya; Murakami, Yoshio

Fusion Technology, 29(1), p.73 - 82, 1996/01

 Times Cited Count:9 Percentile:62.03(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Development of electrical insulation and conduction coating for fusion experimental devices

Onozuka, Masanori*; Tsujimura, Seiichi*; Toyoda, Masahiko*; Inoue, Masahiko*; Abe, Tetsuya; Murakami, Yoshio

Fusion Technology 1994, Vol.1, p.803 - 806, 1995/00

no abstracts in English

JAEA Reports

Operating Experiences and Present Activities of JOYO

Nakano, Makoto*; Furukawa, Kiyoshi; Ito, Yoshio; Inoue, Tatsuya; Matsuno, Yoshiaki

PNC TG033 82-01(1), 26 Pages, 1982/01

PNC-TG033-82-01(1).pdf:0.38MB

The preliminary design of experimental fast reactor JOYO was started in 1965. After thid design, three steps of conceptual designs are carried out, and main parameters were fixed during these steps. This paper describes the operatin experiences which contain functional test beore criticality, initial criticality and low power testing, power ascension tests to 50 MWt operation, power ascension tests to 75 MWt and 75 MWt operation.

JAEA Reports

The First loading fuel elements and power-up for JRR-2

JRR-2 Control Office; Kambara, Toyozo; Shoda, Katsuhiko; Hirata, Yutaka; Shoji, Tsutomu; Kohayakawa, Toru; Morozumi, Minoru; Kambayashi, Yuichiro; Shitomi, Hajimu; Kokanezawa, Takashi; et al.

JAERI 1027, 57 Pages, 1962/09

JAERI-1027.pdf:4.76MB

no abstracts in English

JAEA Reports

Critical experiments and characteristic measurement for JRR-2

JRR-2 Critical Experiments Group; Kambara, Toyozo; Shoda, Katsuhiko; Hirata, Yutaka; Shoji, Tsutomu; Kohayakawa, Toru; Morozumi, Minoru; Kambayashi, Yuichiro; Shitomi, Hajimu; Kokanezawa, Takashi; et al.

JAERI 1025, 62 Pages, 1962/03

JAERI-1025.pdf:4.6MB

no abstracts in English

Oral presentation

Biodegradation of cerboxymethylcellulose hydrogel

Mitobe, Tsutomu*; Kasuya, Kenichi*; Mitomo, Hiroshi*; Nagasawa, Naotsugu; Yoshii, Fumio; Ishii, Nariaki*; Inoue, Yoshio*

no journal, , 

no abstracts in English

Oral presentation

Electric quadrupole moment measurement using a new RF-application system

Nagae, Daisuke; Takemuara, Makoto*; Ueno, Hideki*; Kameda, Daisuke*; Asahi, Koichiro*; Yoshimi, Akihiro*; Sugimoto, Takashi*; Nagatomo, Takashi*; Kobayashi, Yoshio*; Uchida, Makoto*; et al.

no journal, , 

An electric quadrupole moment ($$Q$$ moment) is sensitive to collective aspects of nuclear structure. In the $$Q$$-moment measurement for unstable nuclei, we employ the $$beta$$-detected nuclear-quadrupole resonance method. In this method, we need to supply $$2I$$ resonance frequencies, where $$I$$ denotes the nuclear spin. We have developed a new RF-application system to induced all of the $$2I$$ transitions. The application of the $$2I$$ frequencies may be pursued in two different ways; the sequential RF pulse method and the mixed-wave RF pulse method. We confirmed the reversal of polarization for the both methods, from measurements of $$beta$$-ray asymmetry change for polarized $$^{12}$$B. Using this system, the $$Q$$ moments of $$^{31,32}$$Al have been measured to be $$|Q(^{31}{rm Al})| = 104(9)$$ $$e$$$$cdot$$mb and $$|Q(^{32}{rm Al})| = 24(2)$$ $$e$$$$cdot$$mb by the sequential RF pulse method.

Oral presentation

Deuterium retention in tungsten with radiation damage

Fukumoto, Masakatsu*; Yamawaki, Akifumi*; Soga, Yukihiro*; Otsuka, Yusuke*; Ueda, Yoshio*; Taniguchi, Masaki; Inoue, Takashi; Sakamoto, Keishi; Yagyu, Junichi; Arai, Takashi; et al.

no journal, , 

no abstracts in English

Oral presentation

Deuterium accumulations in damaged tungsten

Fukumoto, Masakatsu*; Yamawaki, Akifumi*; Otsuka, Yusuke*; Ueda, Yoshio*; Taniguchi, Masaki; Inoue, Takashi; Sakamoto, Keishi; Yagyu, Junichi; Arai, Takashi; Takagi, Ikuji*; et al.

no journal, , 

Tungsten is considered as a candidate material for first wall armor of DT fusion reactors. However, it is anticipated that tritium might accumulate in the damage defects that caused by neutron irradiation. The present study measured deuterim accumulation in tungsten specimen after high energy hydrogen ion beam irradiation for generation of irradiation damages and then low energy deuterium beams for their accumulation. As a result, the deuterium accumulation in irradiated tungsten was enhanced as high as six times than that of original specimen.

Oral presentation

Refurbishment and restart of JMTR, 5; Technology development on recycling of beryllium reflectors

Tsuchiya, Kunihiko; Hanawa, Yoshio; Kitagishi, Shigeru; Taguchi, Taketoshi; Inoue, Shuichi; Saito, Takashi

no journal, , 

JP, 2007-313966   Patent publication (In Japanese)

no abstracts in English

Oral presentation

Construction of a BNCT facility using an 8MeV high power proton linac in Ibaraki

Kobayashi, Hitoshi*; Kurihara, Toshikazu*; Matsumoto, Hiroshi*; Yoshioka, Masakazu*; Matsumoto, Noriyuki*; Kumada, Hiroaki*; Matsumura, Akira*; Sakurai, Hideyuki*; Hiraga, Fujio*; Kiyanagi, Yoshiaki*; et al.

no journal, , 

no abstracts in English

Oral presentation

Liquid phase diffusion welding and solid state welding in the view of environment and applied technology

Inoue, Yoshio*; Kizu, Kaname; Yoshida, Kiyoshi

no journal, , 

Productions for joining and their processing technologies developed by authors will be presented. Technologies like casting, joining, surface finishing and test devices will be explained as processing technologies of copper products. Flexible conductor will be explained as products using joining technologies. Pulling eye developed for the fabrication of superconductors of superconducting coils for fusion device (JT-60SA) of Japan Atomic Energy Agency will be explained as caulking technology. The winch wire for pulling and superconducting cable are connected by caulking pulling eye and cable. The tensile strength of caulking part attained 3 ton for the requirement of 1 ton.

16 (Records 1-16 displayed on this page)
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