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Hazime Saitô

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Tetsuo Asakura; Kumiko Horiguchi; David P Knight; Michi Okonogi; Hazime Saitô; Akihiro Aoki; Mike P Williamson
Two different packing arrangements of antiparallel polyalanine.
Hazime Saitô; Isao Ando; Ayyalusamy Ramamoorthy
Chemical shift tensor - the heart of NMR: Insights into biological aspects of proteins.
Hazime Saitô; Atsushi Kira; Tadashi Arakawa; Michikazu Tanio; Satoru Tuzi; Akira Naito
Suppressed or recovered intensities analysis in site-directed (13)C NMR: assessment of low-frequency fluctuations in bacteriorhodopsin and D85N mutants revisited.

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2012: Tetsuo Asakura; Kumiko Horiguchi; David P Knight; Michi Okonogi; Hazime Saitô; Akihiro Aoki; Mike P Williamson
Two different packing arrangements of antiparallel polyalanine.
Angewandte Chemie (International ed. in English) 2012;51(5):1212-5.
2010: Hazime Saitô; Isao Ando; Ayyalusamy Ramamoorthy
Chemical shift tensor - the heart of NMR: Insights into biological aspects of proteins.
Progress in nuclear magnetic resonance spectroscopy 2010;57(2):181-228.
2010: Hazime Saitô; Atsushi Kira; Tadashi Arakawa; Michikazu Tanio; Satoru Tuzi; Akira Naito
Suppressed or recovered intensities analysis in site-directed (13)C NMR: assessment of low-frequency fluctuations in bacteriorhodopsin and D85N mutants revisited.
Biochimica et biophysica acta 2010;1798(2):167-76.
2009: Yasumoto Nakazawa; Yu Suzuki; Mike P Williamson; Hazime Saitô; Tetsuo Asakura
The interaction of amyloid Abeta(1-40) with lipid bilayers and ganglioside as studied by 31P solid-state NMR.
Chemistry and physics of lipids 2009;158(1):54-60.
2008: Izuru Kawamura; Hideaki Yoshida; Yoichi Ikeda; Satoru Yamaguchi; Satoru Tuzi; Hazime Saitô; Naoki Kamo; Akira Naito
Dynamics change of phoborhodopsin and transducer by activation: study using D75N mutant of the receptor by site-directed solid-state 13C NMR.
Photochemistry and photobiology 2008;84(4):921-30.
2007: Izuru Kawamura; Masato Ohmine; Junko Tanabe; Satoru Tuzi; Hazime Saitô; Akira Naito
Dynamic aspects of extracellular loop region as a proton release pathway of bacteriorhodopsin studied by relaxation time measurements by solid state NMR.
Biochimica et biophysica acta 2007;1768(12):3090-7.
2007: Hazime Saitô; Akira Naito
NMR studies on fully hydrated membrane proteins, with emphasis on bacteriorhodopsin as a typical and prototype membrane protein.
Biochimica et biophysica acta 2007;1768(12):3145-61.
2007: Yu Suzuki; Michi Okonogi; Kazuo Yamauchi; Hiromichi Kurosu; Masataka Tansho; Tadashi Shimizu; Hazime Saitô; Tetsuo Asakura
High-field 1H MAS and 15N CP-MAS NMR studies of alanine tripeptides and oligomers: distinction of antiparallel and parallel beta-sheet structures and two crystallographically independent molecules.
The journal of physical chemistry. B 2007;111(30):9172-8.
2007: Hazime Saitô; Yasuharu Kawase; Atushi Kira; Kazutoshi Yamamoto; Michikazu Tanio; Satoru Yamaguchi; Satoru Tuzi; Akira Naito
Surface and dynamic structures of bacteriorhodopsin in a 2D crystal, a distorted or disrupted lattice, as revealed by site-directed solid-state 13C NMR.
Photochemistry and photobiology 2007;83(2):253-62.
2007: Izuru Kawamura; Yoshiaki Degawa; Satoru Yamaguchi; Katsuyuki Nishimura; Satoru Tuzi; Hazime Saitô; Akira Naito
Pressure-induced isomerization of retinal on bacteriorhodopsin as disclosed by fast magic angle spinning NMR.
Photochemistry and photobiology 2007;83(2):346-50.
2007: Izuru Kawamura; Yoichi Ikeda; Yuki Sudo; Masayuki Iwamoto; Kazumi Shimono; Satoru Yamaguchi; Satoru Tuzi; Hazime Saitô; Naoki Kamo; Akira Naito
Participation of the surface structure of Pharaonis phoborhodopsin, ppR and its A149S and A149V mutants, consisting of the C-terminal alpha-helix and E-F loop, in the complex-formation with the cognate transducer pHtrII, as revealed by site-directed 13C solid-state NMR.
Photochemistry and photobiology 2007;83(2):339-45.
2007: Izuru Kawamura; Naoki Kihara; Masato Ohmine; Katsuyuki Nishimura; Satoru Tuzi; Hazime Saitô; Akira Naito
Solid-state NMR studies of two backbone conformations at Tyr185 as a function of retinal configurations in the dark, light, and pressure adapted bacteriorhodopsins.
Journal of the American Chemical Society 2007;129(5):1016-7.
2006: Kazutoshi Yamamoto; Satoru Tuzi; Hazime Saitô; Izuru Kawamura; Akira Naito
Conformation and dynamics changes of bacteriorhodopsin and its D85N mutant in the absence of 2D crystalline lattice as revealed by site-directed 13C NMR.
Biochimica et biophysica acta 2006;1758(2):181-9.
2005: Shuichi Toraya; Takashi Nagao; Kazushi Norisada; Satoru Tuzi; Hazime Saitô; Shunsuke Izumi; Akira Naito
Morphological behavior of lipid bilayers induced by melittin near the phase transition temperature.
Biophysical journal 2005;89(5):3214-22.
2004: Hazime Saitô
Dynamic pictures of membrane proteins in two-dimensional crystal, lipid bilayer and detergent as revealed by site-directed solid-state 13C NMR.
Chemistry and physics of lipids 2004;132(1):101-12.
2004: Atushi Kira; Michikazu Tanio; Satoru Tuzi; Hazime Saitô
Significance of low-frequency local fluctuation motions in the transmembrane B and C alpha-helices of bacteriorhodopsin, to facilitate efficient proton uptake from the cytoplasmic surface, as revealed by site-directed solid-state 13C NMR.
European biophysics journal : EBJ 2004;33(7):580-8.
2004: Satoru Yamaguchi; Kazumi Shimono; Yuki Sudo; Satoru Tuzi; Akira Naito; Naoki Kamo; Hazime Saitô
Conformation and dynamics of the [3-(13)C]Ala, [1-(13)C]Val-labeled truncated pharaonis transducer, pHtrII(1-159), as revealed by site-directed (13)C solid-state NMR: changes due to association with phoborhodopsin (sensory rhodopsin II).
Biophysical journal 2004;86(5):3131-40.
2004: Satoru Yamaguchi; Satoru Tuzi; James U Bowie; Hazime Saitô
Secondary structure and backbone dynamics of Escherichia coli diacylglycerol kinase, as revealed by site-directed solid-state 13C NMR.
Biochimica et biophysica acta 2004;1698(1):97-105.
2004: Hazime Saitô; Satoru Yamaguchi; Keiji Ogawa; Satoru Tuzi; Mercedes Márquez; Carolina Sanz; Esteve Padrós
Glutamic acid residues of bacteriorhodopsin at the extracellular surface as determinants for conformation and dynamics as revealed by site-directed solid-state 13C NMR.
Biophysical journal 2004;86(3):1673-81.
2004: Akira Naito; Miya Kamihira; Ryozo Inoue; Hazime Saitô
Structural diversity of amyloid fibril formed in human calcitonin as revealed by site-directed 13C solid-state NMR spectroscopy.
Magnetic resonance in chemistry : MRC 2004;42(2):247-57.
2004: Hazime Saitô; Jun Mikami; Satoru Yamaguchi; Michikazu Tanio; Atushi Kira; Tadashi Arakawa; Kazutoshi Yamamoto; Satoru Tuzi
Site-directed 13C solid-state NMR studies on membrane proteins: strategy and goals toward revealing conformation and dynamics as illustrated for bacteriorhodopsin labeled with [1-13C]amino acid residues.
Magnetic resonance in chemistry : MRC 2004;42(2):218-30.
2004: Hazime Saitô; Satoru Yamaguchi; Hideyasu Okuda; Aya Shiraishi; Satoru Tuzi
Dynamic aspect of bacteriorhodopsin as a typical membrane protein as revealed by site-directed solid-state 13C NMR.
Solid state nuclear magnetic resonance 2004;25(1-3):5-14.
2003: Hazime Saitô; Kazutoshi Yamamoto; Satoru Tuzi; Satoru Yamaguchi
Backbone dynamics of membrane proteins in lipid bilayers: the effect of two-dimensional array formation as revealed by site-directed solid-state 13C NMR studies on [3-13C]Ala- and [1-13C]Val-labeled bacteriorhodopsin.
Biochimica et biophysica acta 2003;1616(2):127-36.
2003: Patrick Barré; Satoru Yamaguchi; Hazime Saitô; Daniel Huster
Backbone dynamics of bacteriorhodopsin as studied by (13)C solid-state NMR spectroscopy.
European biophysics journal : EBJ 2003;32(6):578-84.
2003: Koka Yonebayashi; Satoru Yamaguchi; Satoru Tuzi; Hazime Saitô
Cytoplasmic surface structures of bacteriorhodopsin modified by site-directed mutations and cation binding as revealed by 13C NMR.
European biophysics journal : EBJ 2003;32(1):1-11.
2003: Tadashi Arakawa; Kazumi Shimono; Satoru Yamaguchi; Satoru Tuzi; Yuki Sudo; Naoki Kamo; Hazime Saitô
Dynamic structure of pharaonis phoborhodopsin (sensory rhodopsin II) and complex with a cognate truncated transducer as revealed by site-directed 13C solid-state NMR.
FEBS letters 2003;536(1-3):237-40.
2003: Miya Kamihira; Yuki Oshiro; Satoru Tuzi; Atsuko Y Nosaka; Hazime Saitô; Akira Naito
Effect of electrostatic interaction on fibril formation of human calcitonin as studied by high resolution solid state 13C NMR.
The Journal of biological chemistry 2003;278(5):2859-65.
2002: Enrica Alberti; Simon M Gilbert; Arthur S Tatham; Peter R Shewry; Akira Naito; Kanna Okuda; Hazime Saitô; Ana M Gil
Study of wheat high molecular weight 1Dx5 subunit by (13)C and (1)H solid-state NMR. II. Roles of nonrepetitive terminal domains and length of repetitive domain.
Biopolymers 2002;65(2):158-68.
2002: Hazime Saitô; Takahiro Tsuchida; Keizi Ogawa; Tadashi Arakawa; Satoru Yamaguchi; Satoru Tuzi
Residue-specific millisecond to microsecond fluctuations in bacteriorhodopsin induced by disrupted or disorganized two-dimensional crystalline lattice, through modified lipid-helix and helix-helix interactions, as revealed by 13C NMR.
Biochimica et biophysica acta 2002;1565(1):97-106.
2002: Shigeki Kimura; Akira Naito; Satoru Tuzi; Hazime Saitô
Dynamics and orientation of transmembrane peptide from bacteriorhodopsin incorporated into lipid bilayer as revealed by solid state (31)P and (13)C NMR spectroscopy.
Biopolymers 2002;63(2):122-31.
2002: Akira Naito; Takashi Nagao; Maki Obata; Yuriko Shindo; Manabu Okamoto; Shinya Yokoyama; Satoru Tuzi; Hazime Saitô
Dynorphin induced magnetic ordering in lipid bilayers as studied by (31)P NMR spectroscopy.
Biochimica et biophysica acta 2002;1558(1):34-44.
2001: Satoru Tuzi; J Hasegawa; R Kawaminami; Akira Naito; Hazime Saitô
Regio-selective detection of dynamic structure of transmembrane alpha-helices as revealed from (13)C NMR spectra of [3-13C]Ala-labeled bacteriorhodopsin in the presence of Mn2+ ion.
Biophysical journal 2001;81(1):425-34.
2001: Satoru Yamaguchi; Koka Yonebayashi; H Konishi; Satoru Tuzi; Akira Naito; Janos K Lanyi; Richard Needleman; Hazime Saitô
Cytoplasmic surface structure of bacteriorhodopsin consisting of interhelical loops and C-terminal alpha helix, modified by a variety of environmental factors as studied by (13)C-NMR.
European journal of biochemistry / FEBS 2001;268(8):2218-28.
2001: Satoru Yamaguchi; Satoru Tuzi; Koka Yonebayashi; Akira Naito; Richard Needleman; Janos K Lanyi; Hazime Saitô
Surface dynamics of bacteriorhodopsin as revealed by (13)C NMR studies on [(13)C]Ala-labeled proteins: detection of millisecond or microsecond motions in interhelical loops and C-terminal alpha-helix.
Journal of biochemistry 2001;129(3):373-82.
2001: S Kimura; Akira Naito; Satoru Tuzi; Hazime Saitô
A (13)C NMR study on [3-(13)C]-, [1-(13)C]Ala-, or [1-(13)C]Val-labeled transmembrane peptides of bacteriorhodopsin in lipid bilayers: insertion, rigid-body motions, and local conformational fluctuations at ambient temperature.
Biopolymers 2001;58(1):78-88.
2000: Y Kawase; Michikazu Tanio; Atushi Kira; Satoru Yamaguchi; Satoru Tuzi; Akira Naito; M Kataoka; Janos K Lanyi; Richard Needleman; Hazime Saitô
Alteration of conformation and dynamics of bacteriorhodopsin induced by protonation of Asp 85 and deprotonation of Schiff base as studied by 13C NMR.
Biochemistry 2000;39(47):14472-80.
2000: Hazime Saitô; Satoru Tuzi; Satoru Yamaguchi; Michikazu Tanio; Akira Naito
Conformation and backbone dynamics of bacteriorhodopsin revealed by (13)C-NMR.
Biochimica et biophysica acta 2000;1460(1):39-48.
2000: Miya Kamihira; Akira Naito; Satoru Tuzi; Atsuko Y Nosaka; Hazime Saitô
Conformational transitions and fibrillation mechanism of human calcitonin as studied by high-resolution solid-state 13C NMR.
Protein science : a publication of the Protein Society 2000;9(5):867-77.
2000: Satoru Yamaguchi; Satoru Tuzi; Michikazu Tanio; Akira Naito; Janos K Lanyi; Richard Needleman; Hazime Saitô
Irreversible conformational change of bacterio-opsin induced by binding of retinal during its reconstitution to bacteriorhodopsin, as studied by (13)C NMR.
Journal of biochemistry 2000;127(5):861-9.
2000: Akira Naito; T Nagao; K Norisada; T Mizuno; Satoru Tuzi; Hazime Saitô
Conformation and dynamics of melittin bound to magnetically oriented lipid bilayers by solid-state (31)P and (13)C NMR spectroscopy.
Biophysical journal 2000;78(5):2405-17.
1999: Michikazu Tanio; Satoru Tuzi; Satoru Yamaguchi; R Kawaminami; Akira Naito; Richard Needleman; Janos K Lanyi; Hazime Saitô
Conformational changes of bacteriorhodopsin along the proton-conduction chain as studied with (13)C NMR of [3-(13)C]Ala-labeled protein: arg(82) may function as an information mediator.
Biophysical journal 1999;77(3):1577-84.
1999: Michikazu Tanio; S Inoue; K Yokota; T Seki; Satoru Tuzi; Richard Needleman; Janos K Lanyi; Akira Naito; Hazime Saitô
Long-distance effects of site-directed mutations on backbone conformation in bacteriorhodopsin from solid state NMR of [1-13C]Val-labeled proteins.
Biophysical journal 1999;77(1):431-42.
1999: Satoru Tuzi; Satoru Yamaguchi; Michikazu Tanio; H Konishi; S Inoue; Akira Naito; Richard Needleman; Janos K Lanyi; Hazime Saitô
Location of a cation-binding site in the loop between helices F and G of bacteriorhodopsin as studied by 13C NMR.
Biophysical journal 1999;76(3):1523-31.
1998: Michikazu Tanio; Satoru Tuzi; Satoru Yamaguchi; H Konishi; Akira Naito; Richard Needleman; Janos K Lanyi; Hazime Saitô
Evidence of local conformational fluctuations and changes in bacteriorhodopsin, dependent on lipids, detergents and trimeric structure, as studied by 13C NMR.
Biochimica et biophysica acta 1998;1375(1-2):84-92.
1998: Satoru Yamaguchi; Satoru Tuzi; T Seki; Michikazu Tanio; Richard Needleman; Janos K Lanyi; Akira Naito; Hazime Saitô
Stability of the C-terminal alpha-helical domain of bacteriorhodopsin that protrudes from the membrane surface, as studied by high-resolution solid-state 13C NMR.
Journal of biochemistry 1998;123(1):78-86.
1996: Satoru Tuzi; Akira Naito; Hazime Saitô
Temperature-dependent conformational change of bacteriorhodopsin as studied by solid-state 13C NMR.
European journal of biochemistry / FEBS 1996;239(2):294-301.
1996: Satoru Tuzi; Satoru Yamaguchi; Akira Naito; Richard Needleman; Janos K Lanyi; Hazime Saitô
Conformation and dynamics of [3-13C]Ala- labeled bacteriorhodopsin and bacterioopsin, induced by interaction with retinal and its analogs, as studied by 13C nuclear magnetic resonance.
Biochemistry 1996;35(23):7520-7.
1996: Y Yamazaki; Satoru Tuzi; Hazime Saitô; Hideki Kandori; Richard Needleman; Janos K Lanyi; A Maeda
Hydrogen bonds of water and C==O groups coordinate long-range structural changes in the L photointermediate of bacteriorhodopsin.
Biochemistry 1996;35(13):4063-8.
1994: Satoru Tuzi; Akira Naito; Hazime Saitô
13C NMR study on conformation and dynamics of the transmembrane alpha-helices, loops, and C-terminus of [3-13C]Ala-labeled bacteriorhodopsin.
Biochemistry 1994;33(50):15046-52.
1994: Akira Naito; Satoru Tuzi; Hazime Saitô
A high-resolution 15N solid-state NMR study of collagen and related polypeptides. The effect of hydration on formation of interchain hydrogen bonds as the primary source of stability of the collagen-type triple helix.
European journal of biochemistry / FEBS 1994;224(2):729-34.
1993: Satoru Tuzi; Akira Naito; Hazime Saitô
A high-resolution solid-state 13C-NMR study on [1-13C]Ala and [3-13C]Ala and [1-13C]Leu and Val-labelled bacteriorhodopsin. Conformation and dynamics of transmembrane helices, loops and termini, and hydration-induced conformational change.
European journal of biochemistry / FEBS 1993;218(3):837-44.
1992: Satoru Tuzi; Kyoko Shinzawa-Itoh; T Erata; Akira Naito; Shinya Yoshikawa; Hazime Saitô
A high-resolution solid-state 13C-NMR study on crystalline bovine heart cytochrome-c oxidase and lysozyme. Dynamic behavior of protein and detergent in the complex.
European journal of biochemistry / FEBS 1992;208(3):713-20.
1992: Hazime Saitô; M Yokoi
A 13C NMR study on collagens in the solid state: hydration/dehydration-induced conformational change of collagen and detection of internal motions.
Journal of biochemistry 1992;111(3):376-82.