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Journal Articles

Hydrogen and hydration in proteins and nucleic acids; Neutron diffraction from bio-macromolecules at JAERI

Niimura, Nobuo; Arai, Shigeki; Kurihara, Kazuo; Chatake, Toshiyuki*; Tanaka, Ichiro*; Bau, R.*

Hydrogen- and Hydration-Sensitive Structural Biology, p.17 - 35, 2005/00

At the JAERI, we have constructed several high-resolution neutron diffractometers dedicated to biological macromolecules (called BIX-type diffractometers), which use a monochromatized neutron beam and a neutron imaging plate detector. In this paper, we review several interesting results regarding hydrogen positions and hydration in proteins, obtained using the two BIX-type diffractometers in JAERI. The general subject of neutron protein crystallography has been reviewed by several authors, and several selected topics have been discussed.

Journal Articles

High performance neutron diffractometer for biomacromolecules

Niimura, Nobuo; Kurihara, Kazuo; Tanaka, Ichiro

Kagaku, 59(2), p.46 - 47, 2004/02

no abstracts in English

Journal Articles

A High-performance neutron diffractometer for biological crystallography (BIX-3)

Tanaka, Ichiro; Kurihara, Kazuo; Chatake, Toshiyuki; Niimura, Nobuo

Journal of Applied Crystallography, 35(Part1), p.34 - 40, 2002/02

A high performance neutron diffractometer for biological crystallography (BIX-3) has been constructed at JRR-3M in Japan Atomic Energy Research Institute (JAERI) in order to determine the hydrogen positions in biological macromolecules. It uses several recent technical innovations, such as a neutron imaging plate and an elastically bent silicon monochromator developed by the authors. These have made it possible to realize a compact vertical arrangement of the diffractometer. Diffraction data have been collected from the proteins rubredoxin and myoglobin in about one month, to a resolution of 1.5 Å, good enough to identify the hydrogen atoms with high accuracy. By adopting a crystal-step scan method for measuring Bragg diffraction intensities, the signal to noise ratio was much better than that of the Laue method. This shows that BIX-3 is one of the best-performing machines for neutron protein crystallography in the world currently.

Journal Articles

Neutron protein crystallography in JAERI

Niimura, Nobuo

Journal of the Physical Society of Japan, 70(Suppl.A), p.396 - 399, 2001/05

no abstracts in English

Oral presentation

Upgrading of diffractometer for protein crystallography, BIX-3,4

Kurihara, Kazuo*; Hirano, Yu*; Hiromoto, Takeshi*; Tamura, Itaru; Tamada, Taro*

no journal, , 

no abstracts in English

Oral presentation

Neutron diffractometer for protein crystallography at cold neutron beam line of JRR-3

Kurihara, Kazuo*; Tamura, Itaru; Hirano, Yu*; Hiromoto, Takeshi*; Kono, Fumiaki*; Tamada, Taro*

no journal, , 

6 (Records 1-6 displayed on this page)
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