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Yasufumi Umena
Yasufumi Umena
Nagoya University
Verified email at okayama-u.ac.jp
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Cited by
Year
Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 ┼
Y Umena, K Kawakami, JR Shen, N Kamiya
Nature 473 (7345), 55-60, 2011
41832011
Light-induced structural changes and the site of O= O bond formation in PSII caught by XFEL
M Suga, F Akita, M Sugahara, M Kubo, Y Nakajima, T Nakane, ...
Nature 543 (7643), 131-135, 2017
5882017
An oxyl/oxo mechanism for oxygen-oxygen coupling in PSII revealed by an x-ray free-electron laser
M Suga, F Akita, K Yamashita, Y Nakajima, G Ueno, H Li, T Yamane, ...
Science 366 (6463), 334-338, 2019
2652019
Location of chloride and its possible functions in oxygen-evolving photosystem II revealed by X-ray crystallography
K Kawakami, Y Umena, N Kamiya, JR Shen
Proceedings of the National Academy of Sciences 106 (21), 8567-8572, 2009
2622009
S1-State Model of the O2-Evolving Complex of Photosystem II
S Luber, I Rivalta, Y Umena, K Kawakami, JR Shen, N Kamiya, ...
Biochemistry 50 (29), 6308-6311, 2011
2412011
Structural basis for blue-green light harvesting and energy dissipation in diatoms
W Wang, LJ Yu, C Xu, T Tomizaki, S Zhao, Y Umena, X Chen, X Qin, ...
Science 363 (6427), eaav0365, 2019
2072019
Structure of the catalytic, inorganic core of oxygen-evolving photosystem II at 1.9 ┼ resolution
K Kawakami, Y Umena, N Kamiya, JR Shen
Journal of Photochemistry and Photobiology B: Biology 104 (1-2), 9-18, 2011
2072011
Theoretical illumination of water-inserted structures of the CaMn 4 O 5 cluster in the S 2 and S 3 states of oxygen-evolving complex of photosystem II: full geometryá…
H Isobe, M Shoji, S Yamanaka, Y Umena, K Kawakami, N Kamiya, ...
Dalton transactions 41 (44), 13727-13740, 2012
1922012
Structure of Sr-substituted photosystem II at 2.1 ┼ resolution and its implications in the mechanism of water oxidation
FHM Koua, Y Umena, K Kawakami, JR Shen
Proceedings of the National Academy of Sciences 110 (10), 3889-3894, 2013
1652013
Structural–functional role of chloride in photosystem II
I Rivalta, M Amin, S Luber, S Vassiliev, R Pokhrel, Y Umena, K Kawakami, ...
Biochemistry 50 (29), 6312-6315, 2011
1562011
Novel features of eukaryotic photosystem II revealed by its crystal structure analysis from a red alga
H Ago, H Adachi, Y Umena, T Tashiro, K Kawakami, N Kamiya, L Tian, ...
Journal of Biological Chemistry 291 (11), 5676-5687, 2016
1232016
Possible mechanisms for the O–O bond formation in oxygen evolution reaction at the CaMn4O5 (H2O) 4 cluster of PSII refined to 1.9 ┼ X-ray resolution
S Yamanaka, H Isobe, K Kanda, T Saito, Y Umena, K Kawakami, JR Shen, ...
Chemical Physics Letters 511 (1-3), 138-145, 2011
1082011
Distribution of the cationic state over the chlorophyll pair of the photosystem II reaction center
K Saito, T Ishida, M Sugiura, K Kawakami, Y Umena, N Kamiya, JR Shen, ...
Journal of the American Chemical Society 133 (36), 14379-14388, 2011
882011
Possible mechanisms of water splitting reaction based on proton and electron release pathways revealed for CaMn4O5 cluster of PSII refined to 1.9 ┼ X‐rayá…
T Saito, S Yamanaka, K Kanda, H Isobe, Y Takano, Y Shigeta, Y Umena, ...
International journal of quantum chemistry 112 (1), 253-276, 2012
722012
The crystal structure of L-lactate oxidase from Aerococcus viridans at 2.1 ┼ resolution reveals the mechanism of strict substrate recognition
Y Umena, K Yorita, T Matsuoka, A Kita, K Fukui, Y Morimoto
Biochemical and biophysical research communications 350 (2), 249-256, 2006
722006
Labile electronic and spin states of the CaMn4O5 cluster in the PSII system refined to the 1.9 ┼ X-ray resolution. UB3LYP computational results
K Kanda, S Yamanaka, T Saito, Y Umena, K Kawakami, JR Shen, ...
Chemical Physics Letters 506 (1-3), 98-103, 2011
702011
Full geometry optimizations of the mixed‐valence CaMn4O4X(H2O)4 (X=OH or O) cluster in OEC of PS II: Degree of symmetry breaking of the labile Mn‐X‐Mná…
K Yamaguchi, H Isobe, S Yamanaka, T Saito, K Kanda, M Shoji, Y Umena, ...
International Journal of Quantum Chemistry 113 (4), 525-541, 2013
652013
The nature of chemical bonds of the CaMn4O5 cluster in oxygen evolving complex of photosystem II: Jahn‐Teller distortion and its suppression by Ca doping iná…
K Yamaguchi, S Yamanaka, H Isobe, T Saito, K Kanda, Y Umena, ...
International Journal of Quantum Chemistry 113 (4), 453-473, 2013
602013
Generalized approximate spin projection calculations of effective exchange integrals of the CaMn 4 O 5 cluster in the S 1 and S 3 states of the oxygen evolving complex ofá…
H Isobe, M Shoji, S Yamanaka, H Mino, Y Umena, K Kawakami, N Kamiya, ...
Physical Chemistry Chemical Physics 16 (24), 11911-11923, 2014
552014
Towards structural elucidation of eukaryotic photosystem II: Purification, crystallization and preliminary X-ray diffraction analysis of photosystem II from a red alga
H Adachi, Y Umena, I Enami, T Henmi, N Kamiya, JR Shen
Biochimica et Biophysica Acta (BBA)-Bioenergetics 1787 (2), 121-128, 2009
532009
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