Nanometer-resolution structural analysis of eukaryotic cells by coherent X-ray diffraction microscopy
Project/Area Number |
25891033
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Single-year Grants |
Research Field |
Cell biology
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Research Institution | The Institute of Physical and Chemical Research |
Principal Investigator |
TAKAYAMA Yuki 独立行政法人理化学研究所, 放射光科学総合研究センター, 基礎科学特別研究員 (40710132)
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Project Period (FY) |
2013-08-30 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | X線回折イメージング / 凍結水和試料 / 細胞・オルガネラ / 構造解析 / X線自由電子レーザー |
Outline of Final Research Achievements |
Biological cells and organelles are essential for lives. An understanding of their physicochemical functions requires visualization of internal structures of whole cells and/or organelles as close to the native state as possible at high resolution. In this study, we conducted structural study of chloroplasts with a size of 1 micron by cryogenic coherent X-ray diffraction microscopy using X-ray free electron laser. Development of a sample preparation method and a measurement scheme allows efficient diffraction data collection, and we have succeeded in visualization of internal structures of chloroplasts at a resolution of 70 nm. We have also proposed a method to enhance weak diffraction signals from biological samples and to achieve robust phasing, and demonstrated that resolution can be improved by a factor of two or more from a set of calculation based on current experiments.
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Report
(3 results)
Research Products
(25 results)
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[Journal Article] Coherent X-ray diffraction imaging of chloroplasts from Cyanidioschyzon merolae by using X-ray free electron laser.2015
Author(s)
Takayama, Y., Inui, Y., Sekiguchi, Y., Kobayashi, A., Oroguchi, T., Yamamoto, M., Matsunaga, S., and Nakasako, M.
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Journal Title
PLANT AND CELL PHYSIOLOGY
Volume: 未定
Issue: 7
Pages: 1-15
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Single shot three-dimensional imaging of high-index-faceted nanocrystals with femtosecond X-ray free electron laser pulses2014
Author(s)
R. Xu, H. Jiang, C. Song, Z. Huang, J. A. Rodriguez, C-C. Chen, D. Nam, J. Park, M. Gallagher-Jones, S. Kim, S. Kim, A. Suzuki, Y. Takayama, T. Oroguchi, Y. Takahashi, J. Fan, Y. Zou, T. Hatsui, Y. Inubushi, T. Kameshima, K. Yonekura et al.
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Journal Title
Nat. Commun.
Volume: 5
Issue: 1
Pages: 4061-4061
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] KOTOBUKI-1 apparatus for cryogenic coherent X-ray diffraction imaging2013
Author(s)
M. Nakasako, Y. Takayama, T. Oroguchi, Y. Sekiguchi, A. Kobayashi, K. Shirahama, M. Yamamoto*, T. Hikima, K. Yonekura, S. Maki-Yonekura, Y. Kohmura, Y. Inubushi, Y. Takahashi*, A. Suzuki, S. Matsunaga, Y. Inui, K. Tono, T. Kameshima, Y. Joti, and T. Hoshi
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Journal Title
Review of Scientific Instruments
Volume: 84
Issue: 12
Pages: 93705-16
DOI
Related Report
Peer Reviewed
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[Presentation] Cryogenic coherent X-ray diffraction imaging of organelles at SACLA2015
Author(s)
Yuki Takayama, Koji Yonekura, Masaki Yamamoto, Amane Kobayashi, Yuki Sekiguchi, Tomotaka Oroguchi, Masayoshi Nakasako, Yayoi Inui, Sachihiro Matsunaga
Organizer
The 1st SACLA Workshop on Femtosecond Crystallography
Place of Presentation
Harima, Hyogo, Japan
Year and Date
2015-03-26
Related Report
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[Presentation] Cryogenic coherent X-ray diffraction imaging of cellular organelle particles2014
Author(s)
Yuki Sekiguchi, Amane Kobayashi, Saki Hashimoto, Tomotaka Oroguchi, Masayoshi Nakasako, Yuki Takayama, Koji Yonekura, Masaki Yamamoto, Yayoi Inui, Sachihiro Matsunaga, Yuichi Ichikawa, Hitoshi Kurumizaka, Mitsuhiro Shimizu
Organizer
第52回日本生物物理学会年会
Place of Presentation
北海道札幌市、札幌コンベンションセンター
Year and Date
2014-09-26
Related Report
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[Presentation] Cryogenic coherent X-ray diffraction imaging of biological particles at SACLA2014
Author(s)
Yuki Takayama, Masayoshi Nakasako, Tomotaka Oroguchi, Yuki Sekiguchi, Masaki Yamamoto, Koji Yonekura, Yukio Takahashi, Akihiro Suzuki, Sachihiro Matsunaga and Yayoi Tsujimoto-Inui
Organizer
23rd Congress and General Assembly of the International Union of Crystallography
Place of Presentation
Montreal, Quebec, Canada
Year and Date
2014-08-07
Related Report
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