Volume 05, No.6

所長室から
From the Director’s Office

上坪　宏道　KAMITSUBO Hiromichi

（財）高輝度光科学研究センター　副理事長、放射光研究所長　JASRI Vice President, Director of JASRI Research Sector

Pages 374 - 375 Download PDF (11.96 KB)

1. SPring-8の現状／PRESENT STATUS OF SPring-8

第5回共同利用（2000A）における実施課題
The Experiments in the 5th Research Period (2000A) at the Public Beamlines of SPring-8

（財）高輝度光科学研究センター　利用業務部　JASRI Users Office

Pages 376 - 381 Download PDF (106.45 KB)

SPring-8運転・利用状況
SPring-8 Operational News

（財）高輝度光科学研究センター　計画管理グループ　JASRI Planning Management Section

Pages 382 - 384 Download PDF (223.83 KB)

2. その他のビームライン／OTHER BEAMLINES

A Status Report : Taiwan APCST Contract Beamline BL12B2

Mau-Tsu Tang、Tang-Eh Dann、Cheng-Chi Chen、Gao-Yu Hsiung、Yong Cai、Chao-Hung Du、Masatada Yuri、King-Long Tsang

Asia and Pacific Council for Science and Technology

Abstract: The Taiwan APCST contract beamline BL12B2 is a multiple-purpose beamline, which is designed to accommodate experiments of x-ray absorption spectroscopy, protein crystallography, x-ray scattering, and micro-beam diffraction. The beamline optics is designed to provide both white beam and monochromatic beam of energies from 5 to 70 keV. Besides high-resolution x-ray absorption and scattering, special experimental capabilities at this beamline will include quick-EXAFS, high-throughput MAD, and micro-beam high-pressure diffraction. The beamline installation was completed in September 2000. The radiation and safety test was passed in early October and the beamline has been under commissioning since then. In this report, we present in brief the beamline design, some construction highlights, and our initial commission results.

Page 385 - 388 Download PDF (259.94 KB)

3. 最近の研究から／FROM LATEST RESEARCH

筋小胞体カルシウムポンプの構造決定
Structure Determination of the Calcium Pump of Sarcoplasmic Reticulum

豊島　近　TOYOSHIMA Chikashi、中迫　雅由　NAKASAKO Masayoshi、野村　博美　NOMURA Hiromi、小川　治夫　OGAWA Haruo

東京大学　分子細胞生物学研究所　Institute of Molecular and Cellular Biosciences, The University of Tokyo

Abstract: Structure of the calcium pump of muscle sarcoplasmic reticulum was determined at 2.6 Å resolution by X-ray crystallography. This is the first atomic structure of the cation pumps called P-type ATPases. Because the crystals were very thin, the use of SPring-8 was vital to this work. The structure of the Ca²⁺ -pump is overviewed very briefly.

Pages 389 - 393 Download PDF (491.93 KB)

G−タンパク質共役受容体ロドプシンの立体構造
Crystal Structure of a G-Protein Coupled Receptor : Bovine Rhodopsin

宮野　雅司　MIYANO Masashi、熊坂　崇　KUMASAKA Takashi、堀　哲哉　HORI Tetsuya、山本　雅貴　YAMAMOTO Masaki

理化学研究所　播磨研究所　RIKEN Harima Institute

Abstract: The crystal structure of bovine rhodopsin, a G-protein coupled receptor was solved by MAD phasing using 3.3Å resolution MAD data set collected at SPring-8 BL45XU, and followed by the structural refinement at 2.8Åresolution using a twinned crystal data collected at APS 19-ID.

Pages 394 - 400 Download PDF (551.66 KB)

4. 研究会等報告／WORKSHOP AND COMMITTEE REPORT

SRI 2000報告
Report on SRI 2000

植木　龍夫　UEKI Tatsuo^[1] 、原　徹　HARA Toru^[2] 、田中　隆次　TANAKA Takashi^[2] 、斎藤　祐児　SAITOH Yuji^[3] 、矢橋　牧名　YABASHI Makina^[4] 、鈴木　芳生　SUZUKI Yoshio^[4] 、鈴木　基寛　SUZUKI Motohiro^[4] 、山本　雅貴　YAMAMOTO Masaki^[5] 、鈴木　昌世　SUZUKI Masayo^[6]

^[1]（財）高輝度光科学研究センター　放射光研究所　JASRI Research Sector、^[2] 理化学研究所　播磨研究所　RIKEN Harima Institute、^[3] 日本原子力研究所　関西研究所　JAERI Kansai Research Establishment、^[4]（財）高輝度光科学研究センター　放射光研究所　JASRI Research Sector、^[5] 理化学研究所　播磨研究所　RIKEN Harima Institute、^[6]（財）高輝度光科学研究センター　放射光研究所　JASRI Research Sector