[1]. Role of Monomer/Tetramer Equilibrium of Rod Visual Arrestin in the Interaction with Phosphorylated Rhodopsin International Journal of Molecular Sciences 24/5 4963-4963 (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Yasushi Imamoto, Keiichi Kojima, Ryo Maeda, Yoshinori Shichida, Toshihiko Oka [DOI] [2]. Aggregation structure of chiral cubic liquid crystals revealed by X-ray diffraction utilizing a new algorithm Soft Matter 19/6 1194-1201 (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Toshihiko Oka, Yasuhisa Yamamura, Shoichi Kutsumizu, Kazuya Saito [DOI] [3]. A phase retrieval algorithm for triply periodic minimal surface like structures Acta Crystallographica Section A Foundations and Advances 79/1 51-58 (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka [URL] [DOI] [4]. Crystallographic phase retrieval method for liquid crystal bicontinuous phases: indicator-based method Acta Crystallographica Section A Foundations and Advances 78/ 430-436 (2022) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka [URL] [DOI] [5]. Polar–Nonpolar Interfaces of Normal Bicontinuous Cubic Phases in Nonionic Surfactant/Water Systems Are Parallel to the Gyroid Surface Langmuir 36/30 8687-8694 (2020) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka, Noboru Ohta, Stephen T. Hyde [URL] [DOI] [6]. Conformational Differences among Metarhodopsin I, Metarhodopsin II, and Opsin Probed by Wide-Angle X-ray Scattering The Journal of Physical Chemistry B 123/43 9134- (2019) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Yasushi Imamoto, Keiichi Kojima, Toshihiko Oka, Ryo Maeda, Yoshinori Shichida [URL] [DOI] [7]. Functional and structural characterization of HspB1/Hsp27 from Chinese hamster ovary cells. FEBS open bio 9/10 1826-1834 (2019) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Sha E, Nakamura M, Ankai K, Yamamoto YY, Oka T, Yohda M [DOI] [8]. Polar–Nonpolar Interfaces of Inverse Bicontinuous Cubic Phases in Phytantriol/Water System are Parallel to Triply Periodic Minimal Surfaces Langmuir 34/50 15462-15469 (2018) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka, Noboru Ohta, Stephen Hyde [URL] [DOI] [9]. Physicochemical Properties of the Mammalian Molecular Chaperone HSP60 International Journal of Molecular Sciences 19/2 489- (2018) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Ryuichi Ishida, Tomoya Okamoto, Fumihiro Motojima, Hiroshi Kubota, Hiroki Takahashi, Masako Tanabe, Toshihiko Oka, Akira Kitamura, Masataka Kinjo, Masasuke Yoshida, Michiro Otaka, Ewa Grave, Hideaki Itoh [URL] [DOI] [10]. Small-Angle X-ray Crystallography on Single-Crystal Regions of Inverse Bicontinuous Cubic Phases: Lipid Bilayer Structures and Gaussian Curvature-Dependent Fluctuations The Journal of Physical Chemistry B 121/50 11399-11409 (2017) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka [URL] [DOI] [11]. Low-pH-Induced Lamellar to Bicontinuous Primitive Cubic Phase Transition in Dioleoylphosphatidylserine/Monoolein Membranes Langmuir 33/43 12487-12496 (2017) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Toshihiko Oka,Moynul Hasan,Md Zahidul Islam,Md Moniruzzaman, Masahito Yamazaki [URL] [DOI] [12]. Enhancing the Solubility and Oral Bioavailability of Poorly Water-Soluble Drugs Using Monoolein Cubosomes Chemical and Pharmaceutical Bulletin 65/1 42-48 (2017) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Ali Md. Ashraf, Kataoka Noriko, Ranneh Abdul-Hackam, Iwao Yasunori, Noguchi Shuji, Oka Toshihiko, Itai Shigeru [URL] [13]. The use of surfactants to enhance the solubility and stability of the water-insoluble anticancer drug SN38 into liquid crystalline phase nanoparticles International Journal of Pharmaceutics 515/1-2 501-505 (2016) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Abdul-Hackam Ranneh,Yasunori Iwao,Shuji Noguchi,Toshihiko Oka,Shigeru Itai [URL] [DOI] [14]. Two distinct cylinder arrangements in monodomains of a lyotropic liquid crystalline hexagonal II phase: monodomains with straight cylinders and ringed cylinders in capillaries Langmuir 32/30 7613-7620 (2016) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka, Noboru Ohta [URL] [DOI] [15]. Preparation and Characterization of SN-38-Encapsulated Phytantriol Cubosomes Containing α-Monoglyceride Additives Chemical and Pharmaceutical Bulletin 64/6 577-584 (2016) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Ali Md Ashraf, Noguchi Shuji, Iwao Yasunori, Oka Toshihiko, Itai Shigeru [URL] [16]. Activation Energy of the Low pH-Induced Lamellar to Bicontinuous Cubic Phase Transition in Dioleoylphosphatidylserine/Monoolein Langmuir 32/5 1327-1337 (2016) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Toshihiko Oka,Takahiro Saiki,Jahangir Md. Alam, Masahito Yamazaki [URL] [DOI] [17]. Helical Rearrangement of Photoactivated Rhodopsin in Monomeric and Dimeric Forms Probed by High-Angle X-Ray Scattering Photochemical & Photobiological Sciences 14/11 1965-1973 (2015) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Imamoto Yasushi, Kojima Keiichi, Oka Toshihiko, Maeda Ryo, Shichida Yoshinori [URL] [DOI] [18]. Transformation between Inverse Bicontinuous Cubic Phases of a Lipid from Diamond to Gyroid Langmuir 31/41 11353-11359 (2015) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka [URL] [DOI] [19]. Glyceryl monooleyl ether-based liquid crystalline nanoparticles as a transdermal delivery system of flurbiprofen: characterization and in vitro transport Chemical & Pharmaceutical Bulletin 63/5 334-340 (2015) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Tomonobu UCHINO, Akiko MURATA,Yasunori MIYAZAKI,Toshihiko Oka,Satoru HASHIMOTO,Yoshiyuki KAGAWA [URL] [DOI] [20]. Transformation between Inverse Bicontinuous Cubic Phases of a Lipid from Diamond to Primitive Langmuir 31/10 3180-3185 (2015) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka [URL] [DOI] [21]. Initial Step of Low pH-Induced Lamellar to Bicontinuous Cubic Phase Transition in Dioleoylphosphatidylserine/Monoolein Langmuir 30/27 8131-8140 (2014) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Toshihiko Oka,Taka-aki Tsuboi,Takahiro Saiki,Tomoki Takahashi,Jahangir Md. Alam, Masahito Yamazaki [URL] [DOI] [22]. Single Crystallization of an Inverse Bicontinuous Cubic Phase of a Lipid Langmuir 30/28 8253-8257 (2014) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Toshihiko Oka , Hiroki Hojo [URL] [DOI] [23]. Transdermal delivery of flurbiprofen from surfactant-based vesicles: Particle characterization and the effect of water on in vitro transport International Journal of Pharmaceutics 464/1-2 75-84 (2014) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Uchino Tomonobu, Matsumoto Yuiko, Murata Akiko, Oka Toshihiko, Miyazaki Yasunori, Kagawa Yoshiyuki [URL] [DOI] [24]. Dissection of the ATP-dependent conformational change cycle of a group II chaperonin Jourmal of Molecular Biology 426/(num) 447-459 (2014) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Nakagawa Ayumi, Moriya Kazuki, Arita Mayuno, Yamamoto Yohei, Kitamura Kyotaro, Ishiguro Naoki, Kanzaki Taro, Oka Toshihiko, Makabe Koki, Kuwajima Kunihiro [DOI] [25]. Biochemical characterization and cooperation with co-chaperones of heat shock protein 90 from Schizosaccharomyces pombe Journal of Bioscience and Bioengineering 116/4 444-448 (2013) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Ishida Mari, Tomomari Taichi, Kanzaki Taro, Abe Tetsuya, Oka Toshihiko, Yohda Masafumi [DOI] [26]. Non equivalence observed for the 16-meric structure of a small heat shock protein, SpHsp16.0 from Schizosaccharomyces pombe Structure 21/2 220-228 (2013) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Hanazono Yuya, Takeda Kazuki, Oka Toshihiko, Abe Tetsuya, Tomonari Taichi, Akiyama Nobuhiko, Aikawa Yoshiki, Yohda Masafumi, Miki Kunio [URL] [DOI] [27]. StHsp14.0, a small heat shock protein of Sulfolobus tokodaii strain 7, protects denatured proteins from aggregation in the partially dissociated conformation Journal of Biochemistry 150/4 403-409 (2011) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Abe Tetsuya, Oka Toshihiko, Nakagome Atsushi, Tsukada Yoshihiro, Yasunaga Takuo, Yohda Masafumi [URL] [DOI] [28]. Kinetics of Low pH-Induced Lamellar to Bicontinuous Cubic Phase Transition in Dioleoylphosphatidylserine/Monoolein Journal of Chemical Physics 134/(num) 145102- (zzz) (2011) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Alam Mahay Md, Oka Toshihiko, Ohta Noboru, Yamazaki Masahito [URL] [DOI] [29]. A new approach for structure analysis of two-dimensional membrane protein crystals using X-ray powder diffraction data Protein Science 20/2 457-464 (2011) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper [Lead author or co-author] co-author [Author] Dilanian R. A, Darmanin C, Varghese J. N, Wilkins S. W, Oka T, Yagi N, Quiney H. M, Nugent K. A. [URL] [DOI] [30]. Adaptation of a hyperthermophilic group II chaperonin to relatively moderate temperatures Protein Engineering Design & Selection 23/5 393-402 (2010) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Kanzaki Taro, Ushioku Shuzo, Nakagawa Ayumi, Oka Toshihiko, Takahashi Kazunobu, Nakamura Takashi, Kuwajima Kunihiro, Yamagishi Akihiko, Yohda Masafumi [URL] [DOI] [31]. Redox-Dependent Domain Rearrangement of Protein Disulfide Isomerase Coupled with Exposure of Its Substrate-Binding Hydrophobic Surface Journal of Molecular Biology 396/2 361-374 (2010) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Serve Olivier, Kamiya Yukiko, Maeno Aya, Nakano Michiko, Murakami Chiho, Sasakawa Hiroaki, Yamaguchi Yoshiki, Harada Takushi, Kurimoto Eiji, Yagi-Utsumi Maho [URL] [DOI] [32]. Redox-Dependent Domain Rearrangement of Protein Disulfide Isomerase from a Thermophilic Fungus Biochemistry 49/32 6953-6962 (2010) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Nakasako Masayoshi, Maeno Aya, Kurimoto Eiji, Harada Takushi, Yamaguchi Yoshiki, Oka Toshihiko, Takayama Yuki, Iwata Aya, Kato Koichi [URL] [DOI] [33]. 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 Journal of Biological Chemistry 283/(num) 34773-34784 (2008) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Kanzaki Taro, Iizuka Ryo, Takahashi Kazunobu, Maki Kosuke, Masuda Rie, Sahlan Muhamad, Yébenes Hugo, Valpuesta José M, Oka Toshihiko, Furutani Masahiro [URL] [DOI] [34]. Crystallization and preliminary X-ray diffraction anaylsis of the LOV1 domains of phototropin 1 and 2 from Arabidopsis thaliana Acta Crystallographica Section F-Structural Biology and Crystallization Communications 64/ 617-621 (2008) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Nakasako Masayoshi, Hirata Michihiro, Shimizu Nobutaka, Hosokawa Shyuntaro, Matsuoka Daisuke, Oka Toshihiko, Yamamoto Masaki, Tokutomi Satoru [DOI] [35]. High-resolution powder diffraction study of purple membrane with a large Guinier-type camera Journal of Synchrotron Radiation 13/(num) 281-284 (2006) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Oka T, Miura K, Inoue K, Ueki T, Yagi N [URL] [DOI] [36]. Structural transition of bacteriorhodopsin is preceded by deprotonation of Schiff base: Microsecond time-resolved X-ray diffraction study of purple membrane Biophysical Journal 88/1 436-442 (2005) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] author [Author] Oka T, Inoue K, Kataoka M, Yagi N [URL] [DOI] [37]. 38/ 274-279 (2005) [Refereed] refereed [Lead author or co-author] [Author] Ohta N, Oka T, Inoue K, Yagi N, Kato S, Hatta I [DOI] [38]. 351/3 627-640 (2005) [Refereed] refereed [Lead author or co-author] [Author] Nakasako M, Oka T, Mashumo M, Takahashi H, Shimada I, Yamaguchi Y, Kato K, Arata Y [DOI] [39]. X-ray imaging microscopy using Fresnel zone plate objective and quasimonochromatic undulator radiation Review of Scientific Instruments 75/4 1155-1157 (2004) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper [Lead author or co-author] co-author [Author] Suzuki Y, Takeuchi A, Takano H, Uesugi K, Oka T, Inoue K [DOI] [40]. 70/2 - (2004) [Refereed] refereed [Lead author or co-author] [Author] Okumura Y, Oka T, Kataoka M, Taniguchi Y, Sasaki YC [DOI] [41]. 11/ 456-461 (2004) [Refereed] refereed [Lead author or co-author] [Author] Yagi N, Inoue K, Oka T [DOI] [42]. 82/5 2610-2616 (2002) [Refereed] refereed [Lead author or co-author] [Author] Oka T, Yagi N, Tokunaga F, Kataoka M [43]. 41/6 1915-1922 (2002) [Refereed] refereed [Lead author or co-author] [Author] Sasaki J, Kumauchi M, Hamada N, Oka T, Tokunaga F [DOI] [44]. 97/26 14278-14282 (2000) [Refereed] refereed [Lead author or co-author] [Author] Oka T, Yagi N, Fujisawa T, Kamikubo H, Tokunaga F, Kataoka M [DOI] [45]. 33/1 797-800 (2000) [Refereed] refereed [Lead author or co-author] [Author] Fujisawa T, Inoue K, Oka T, Iwamoto H, Uruga T, Kumasaka T, Inoko Y, Yagi N, Yamamoto M, Ueki T [DOI] [46]. 266/1-2 20-26 (1999) [Refereed] refereed [Lead author or co-author] [Author] Kataoka M, Ferrand M, Goupil-Lamy AV, Kamikubo H, Yunoki J, Oka T, Smith JC [DOI] [47]. 76/2 1018-1023 (1999) [Refereed] refereed [Lead author or co-author] [Author] Oka T, Kamikubo H, Tokunaga F, Lanyi JK, Needleman R, Kataoka M [DOI] [48]. 66/6 768-773 (1997) [Refereed] refereed [Lead author or co-author] [Author] Oka T, Kamikubo H, Tokunaga F, Lanyi JK, Needleman R, Kataoka M [DOI] [49]. 36/40 12282-12287 (1997) [Refereed] refereed [Lead author or co-author] [Author] Kamikubo H, Oka T, Imamoto Y, Tokunaga F, Lanyi JK, Kataoka M [DOI] [50]. 93/4 1386-1390 (1996) [Refereed] refereed [Lead author or co-author] [Author] Kamikubo H, Kataoka M, Varo G, Oka T, Tokunaga F, Needleman R, Lanyi JK [DOI] |