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Toshihiko Oka
Toshihiko Oka
Verified email at shizuoka.ac.jp
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Small-angle X-ray scattering station at the SPring-8 RIKEN beamline
T Fujisawa, K Inoue, T Oka, H Iwamoto, T Uruga, T Kumasaka, Y Inoko, ...
Journal of applied crystallography 33 (3), 797-800, 2000
1962000
Structure of the N intermediate of bacteriorhodopsin revealed by x-ray diffraction.
H Kamikubo, M Kataoka, G Váró, T Oka, F Tokunaga, R Needleman, ...
Proceedings of the National Academy of Sciences 93 (4), 1386-1390, 1996
1421996
Redox-dependent domain rearrangement of protein disulfide isomerase coupled with exposure of its substrate-binding hydrophobic surface
O Serve, Y Kamiya, A Maeno, M Nakano, C Murakami, H Sasakawa, ...
Journal of molecular biology 396 (2), 361-374, 2010
722010
Nonequivalence observed for the 16-meric structure of a small heat shock protein, SpHsp16. 0, from Schizosaccharomyces pombe
Y Hanazono, K Takeda, T Oka, T Abe, T Tomonari, N Akiyama, Y Aikawa, ...
Structure 21 (2), 220-228, 2013
712013
The last phase of the reprotonation switch in bacteriorhodopsin: the transition between the M-type and the N-type protein conformation depends on hydration
H Kamikubo, T Oka, Y Imamoto, F Tokunaga, JK Lanyi, M Kataoka
Biochemistry 36 (40), 12282-12287, 1997
691997
Time-resolved x-ray diffraction reveals multiple conformations in the M–N transition of the bacteriorhodopsin photocycle
T Oka, N Yagi, T Fujisawa, H Kamikubo, F Tokunaga, M Kataoka
Proceedings of the National Academy of Sciences 97 (26), 14278-14282, 2000
652000
Light-induced unfolding of photoactive yellow protein mutant M100L
J Sasaki, M Kumauchi, N Hamada, T Oka, F Tokunaga
Biochemistry 41 (6), 1915-1922, 2002
502002
Conformational change of helix G in the bacteriorhodopsin photocycle: investigation with heavy atom labeling and x-ray diffraction
T Oka, H Kamikubo, F Tokunaga, JK Lanyi, R Needleman, M Kataoka
Biophysical journal 76 (2), 1018-1023, 1999
461999
Enhancing the solubility and oral bioavailability of poorly water-soluble drugs using monoolein cubosomes
MA Ali, N Kataoka, AH Ranneh, Y Iwao, S Noguchi, T Oka, S Itai
Chemical and Pharmaceutical Bulletin 65 (1), 42-48, 2017
452017
Redox-dependent domain rearrangement of protein disulfide isomerase from a thermophilic fungus
M Nakasako, A Maeno, E Kurimoto, T Harada, Y Yamaguchi, T Oka, ...
Biochemistry 49 (32), 6953-6962, 2010
392010
Structural analysis of cell membrane complex of a hair fibre by micro-beam X-ray diffraction
N Ohta, T Oka, K Inoue, N Yagi, S Kato, I Hatta
Journal of Applied Crystallography 38 (2), 274-279, 2005
372005
Present Status of BL40B2 and BL40XU at SPring‐8 (Beamlines for Small Angle X‐ray Scattering)
K Inoue, T Oka, K Miura, N Yagi
AIP Conference Proceedings 705 (1), 336-339, 2004
372004
Physicochemical properties of the mammalian molecular chaperone HSP60
R Ishida, T Okamoto, F Motojima, H Kubota, H Takahashi, M Tanabe, ...
International Journal of Molecular Sciences 19 (2), 489, 2018
362018
The use of surfactants to enhance the solubility and stability of the water-insoluble anticancer drug SN38 into liquid crystalline phase nanoparticles
AH Ranneh, Y Iwao, S Noguchi, T Oka, S Itai
International journal of pharmaceutics 515 (1-2), 501-505, 2016
332016
Preparation and characterization of SN-38-encapsulated phytantriol cubosomes containing α-monoglyceride additives
MA Ali, S Noguchi, Y Iwao, T Oka, S Itai
Chemical and Pharmaceutical Bulletin 64 (6), 577-584, 2016
322016
Time-resolved x-ray diffraction reveals movement of F helix of D96N bacteriorhodopsin during M-MN transition at neutral pH
T Oka, N Yagi, F Tokunaga, M Kataoka
Biophysical journal 82 (5), 2610-2616, 2002
302002
Picometer-scale dynamical observations of individual membrane proteins: The case of bacteriorhodopsin
Y Okumura, T Oka, M Kataoka, Y Taniguchi, YC Sasaki
Physical Review E 70 (2), 021917, 2004
282004
Kinetics of low pH-induced lamellar to bicontinuous cubic phase transition in dioleoylphosphatidylserine/monoolein
MM Alam, T Oka, N Ohta, M Yamazaki
The Journal of chemical physics 134 (14), 2011
262011
Sequential action of ATP-dependent subunit conformational change and interaction between helical protrusions in the closure of the built-in lid of group II chaperonins
T Kanzaki, R Iizuka, K Takahashi, K Maki, R Masuda, M Sahlan, ...
Journal of biological chemistry 283 (50), 34773-34784, 2008
262008
CCD-based X-ray area detector for time-resolved diffraction experiments
N Yagi, K Inoue, T Oka
Journal of synchrotron radiation 11 (6), 456-461, 2004
252004
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