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Tetsuo Asakura

Research Profile

Chemicals & Drugs

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Magnetic Resonance Spectroscopy

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Amino Acid Sequences

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Sayaka Miyamoto; Chisato Miyaura; Aya Nagano; Yasumoto Nakazawa; Yoshimitsu Abiko; Masaki Inada; Ryo Koyanagi; Tetsuo Asakura
Bombyx mori silk fibroin scaffolds for bone regeneration studied by bone differentiation experiment.
Tetsuo Asakura; Gregory P Holland; Yasumoto Nakazawa; Yu Suzuki; Koji Yazawa; Jeffery L Yarger
Silk structure studied with nuclear magnetic resonance.
Derya Aytemiz; Naoki Nakaizumi; Yasumoto Nakazawa; Yoko Ogawa; Wataru Sakiyama; Yu Suzuki; Yoshihide Takagi; Ryou Tanaka; Tetsuo Asakura
Small-diameter silk vascular grafts (3 mm diameter) with a double-raschel knitted silk tube coated with silk fibroin sponge.

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2013: Sayaka Miyamoto; Chisato Miyaura; Aya Nagano; Yasumoto Nakazawa; Yoshimitsu Abiko; Masaki Inada; Ryo Koyanagi; Tetsuo Asakura
Bombyx mori silk fibroin scaffolds for bone regeneration studied by bone differentiation experiment.
Journal of bioscience and bioengineering 2013;115(5):575-8.
2013: Tetsuo Asakura; Gregory P Holland; Yasumoto Nakazawa; Yu Suzuki; Koji Yazawa; Jeffery L Yarger
Silk structure studied with nuclear magnetic resonance.
Progress in nuclear magnetic resonance spectroscopy 2013;69():23-68.
2013: Derya Aytemiz; Naoki Nakaizumi; Yasumoto Nakazawa; Yoko Ogawa; Wataru Sakiyama; Yu Suzuki; Yoshihide Takagi; Ryou Tanaka; Tetsuo Asakura
Small-diameter silk vascular grafts (3 mm diameter) with a double-raschel knitted silk tube coated with silk fibroin sponge.
Advanced healthcare materials 2013;2(2):361-8.
2012: Koji Yazawa; Akihiro Aoki; Hironori Kaji; Katsuyuki Nishimura; Yusuke Nishiyama; Takuya Ohata; Tadashi Shimizu; Furitsu Suzuki; Tetsuo Asakura
Determination of accurate 1H positions of an alanine tripeptide with anti-parallel and parallel β-sheet structures by high resolution 1H solid state NMR and GIPAW chemical shift calculation.
Chemical communications (Cambridge, England) 2012;48(91):11199-201.
2012: Koji Yazawa; David Knight; Erika Yamaguchi; Tetsuo Asakura
13 C solid-state NMR study of the 13 C-labeled peptide, (E)8 GGLGGQGAG(A)6 GGAGQGGYGG as a model for the local structure of Nephila clavipes dragline silk (MaSp1) before and after spinning.
Biopolymers 2012;97(6):347-54.
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.
2011: Tetsuo Asakura; Masakatsu Kamiya; Aya Nagano; Yasumoto Nakazawa; Hirohito Nishi; Ai Yoshida; M Demura
NMR analysis of the fibronectin cell-adhesive sequence, Arg-Gly-Asp, in a recombinant silk-like protein and a model peptide.
Biomacromolecules 2011;12(11):3910-6.
2011: Takahito Yagi; Kenji Itoh; Yasumoto Nakazawa; Masataka Sata; Michiko Sato; Yoshihide Takagi; Kimie Tanaka; Tetsuo Asakura
Preparation of double-raschel knitted silk vascular grafts and evaluation of short-term function in a rat abdominal aorta.
Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs 2011;14(2):89-99.
2011: Aya Nagano; Yumi Tanioka; Nobuko Sakurai; Hideki Sezutsu; Noboru Kuboyama; Hideo Kiba; Yasuhiro Tanimoto; Norihiro Nishiyama; Tetsuo Asakura
Regeneration of the femoral epicondyle on calcium-binding silk scaffolds developed using transgenic silk fibroin produced by transgenic silkworm.
Acta biomaterialia 2011;7(3):1192-201.
2010: Kazuo Yamauchi; Shizuo Yamasaki; Rui Takahashi; Tetsuo Asakura
Microscopic structural analysis of fractured silk fibers from Bombyx mori and Samia cynthia ricini using 13C CP/MAS NMR with a 1mm microcoil MAS NMR probehead.
Solid state nuclear magnetic resonance 2010;38(1):27-30.
2010: Zhenghua Zhu; Yuka Kikuchi; Katsura Kojima; Toshiki Tamura; Nobuo Kuwabara; Takashi Nakamura; Tetsuo Asakura
Mechanical properties of regenerated Bombyx mori silk fibers and recombinant silk fibers produced by transgenic silkworms.
Journal of biomaterials science. Polymer edition 2010;21(3):395-411.
2010: Soichiro Enomoto; Makoto Sumi; Kan Kajimoto; Yasumoto Nakazawa; Rui Takahashi; Chiyuki Takabayashi; Tetsuo Asakura; Masataka Sata
Long-term patency of small-diameter vascular graft made from fibroin, a silk-based biodegradable material.
Journal of vascular surgery 2010;51(1):155-64.
2009: Erika Yamaguchi; Kazuo Yamauchi; Terry Gullion; Tetsuo Asakura
Structural analysis of the Gly-rich region in spider dragline silk using stable-isotope labeled sequential model peptides and solid-state NMR.
Chemical communications (Cambridge, England) 2009;(28):4176-8.
2009: Yu Suzuki; Rui Takahashi; Tadashi Shimizu; Masataka Tansho; Kazuo Yamauchi; Mike P Williamson; Tetsuo Asakura
Intra- and intermolecular effects on 1H chemical shifts in a silk model Peptide determined by high-field solid state 1H NMR and empirical calculations.
The journal of physical chemistry. B 2009;113(29):9756-61.
2009: Kumiko Makaya; Shinichi Terada; Kosuke Ohgo; Tetsuo Asakura
Comparative study of silk fibroin porous scaffolds derived from salt/water and sucrose/hexafluoroisopropanol in cartilage formation.
Journal of bioscience and bioengineering 2009;108(1):68-75.
2009: Chikako Tanaka; Tetsuo Asakura
Synthesis and characterization of cell-adhesive silk-like proteins constructed from the sequences of Anaphe silk fibroin and fibronectin.
Biomacromolecules 2009;10(4):923-8.
2008: Kristin K Kumashiro; Kosuke Ohgo; Walter Niemczura; Allen K Onizuka; Tetsuo Asakura
Structural insights into the elastin mimetic (LGGVG)6 using solid-state 13C NMR experiments and statistical analysis of the PDB.
Biopolymers 2008;89(8):668-79.
2008: Kosuke Ohgo; Frank Bagusat; Tetsuo Asakura; Ulrich Scheler
Investigation of structural transition of regenerated silk fibroin aqueous solution by Rheo-NMR spectroscopy.
Journal of the American Chemical Society 2008;130(12):4182-6.
2008: Kazuo Yamauchi; Michi Okonogi; Hiromichi Kurosu; Masataka Tansho; Tadashi Shimizu; Terry Gullion; Tetsuo Asakura
High field 17O solid-state NMR study of alanine tripeptides.
Journal of magnetic resonance (San Diego, Calif. : 1997) 2008;190(2):327-32.
2008: Mingying Yang; Chikako Tanaka; Kazuo Yamauchi; Kosuke Ohgo; Masato Kurokawa; Tetsuo Asakura
Silklike materials constructed from sequences of Bombyx mori silk fibroin, fibronectin, and elastin.
Journal of biomedical materials research. Part A 2008;84(2):353-63.
2008: Mingying Yang; Tomoko Muto; David Knight; Andrew M Collins; Tetsuo Asakura
Synthesis and characterization of silklike materials containing the calcium-binding sequence from calbindin D9k or the shell nacreous matrix protein MSI60.
Biomacromolecules 2008;9(1):416-20.
2007: Mingying Yang; Kazuo Yamauchi; Masato Kurokawa; Tetsuo Asakura
Design of silk-like biomaterials inspired by mussel-adhesive protein.
Tissue engineering 2007;13(12):2941-7.
2007: Satoshi Yanagisawa; Zhenghua Zhu; Isao Kobayashi; Keiro Uchino; Yasushi Tamada; Toshiki Tamura; Tetsuo Asakura
Improving cell-adhesive properties of recombinant Bombyx mori silk by incorporation of collagen or fibronectin derived peptides produced by transgenic silkworms.
Biomacromolecules 2007;8(11):3487-92.
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: Tetsuo Asakura; Hirohiko Sato; Fumika Moro; Yasumoto Nakazawa; Akihiro Aoki
Lamellar structure in poly(ala-gly) determined by solid-state NMR and statistical mechanical calculations.
Journal of the American Chemical Society 2007;129(17):5703-9.
2007: Tetsuo Asakura; Kosuke Umemura; Yasumoto Nakazawa; Haruko Hirose; James Higham; David Knight
Some observations on the structure and function of the spinning apparatus in the silkworm Bombyx mori.
Biomacromolecules 2007;8(1):175-81.
2006: Kosuke Ohgo; Walter Niemczura; Jun Ashida; Michi Okonogi; Tetsuo Asakura; Kristin K Kumashiro
Heterogeneity in the conformation of valine in the elastin mimetic (LGGVG)6 as shown by solid-state 13C NMR SPEctroscopy.
Biomacromolecules 2006;7(12):3306-10.
2006: Tetsuo Asakura; Michi Okonogi; Yasumoto Nakazawa; Kazuo Yamauchi
Structural analysis of alanine tripeptide with antiparallel and parallel beta-sheet structures in relation to the analysis of mixed beta-sheet structures in Samia cynthia ricini silk protein fiber using solid-state NMR spectroscopy.
Journal of the American Chemical Society 2006;128(18):6231-8.
2006: Kosuke Ohgo; Taiji Kawase; Jun Ashida; Tetsuo Asakura
Solid-state NMR analysis of a peptide (Gly-Pro-Gly-Gly-Ala)6-Gly derived from a flagelliform silk sequence of Nephila clavipes.
Biomacromolecules 2006;7(4):1210-4.
2005: Mingying Yang; Yasumoto Nakazawa; Kazuo Yamauchi; David Knight; Tetsuo Asakura
Structure of model peptides based on Nephila clavipes dragline silk spidroin (MaSp1) studied by 13C cross polarization/magic angle spinning NMR.
Biomacromolecules 2005;6(6):3220-6.
2005: Tetsuo Asakura; Yasumoto Nakazawa; Erika Ohnishi; Fumika Moro
Evidence from 13C solid-state NMR spectroscopy for a lamella structure in an alanine-glycine copolypeptide: a model for the crystalline domain of Bombyx mori silk fiber.
Protein science : a publication of the Protein Society 2005;14(10):2654-7.
2005: Kazuo Yamauchi; T Imada; Tetsuo Asakura
Use of microcoil probehead for determination of the structure of oriented silk fibers by solid-state NMR.
The journal of physical chemistry. B 2005;109(37):17689-92.
2005: Mingying Yang; Tetsuo Asakura
Design, expression and solid-state NMR characterization of silk-like materials constructed from sequences of spider silk, Samia cynthia ricini and Bombyx mori silk fibroins.
Journal of biochemistry 2005;137(6):721-9.
2005: Tetsuo Asakura; Kosuke Ohgo; Teppei Ishida; Paola Taddei; Patrizia Monti; Raghuvansh Kishore
Possible implications of serine and tyrosine residues and intermolecular interactions on the appearance of silk I structure of Bombyx mori silk fibroin-derived synthetic peptides: high-resolution 13C cross-polarization/magic-angle spinning NMR study.
Biomacromolecules 2005;6(1):468-74.
2004: Juming Yao; Satoshi Yanagisawa; Tetsuo Asakura
Design, expression and characterization of collagen-like proteins based on the cell adhesive and crosslinking sequences derived from native collagens.
Journal of biochemistry 2004;136(5):643-9.
2004: Paola Taddei; Tetsuo Asakura; Juming Yao; Patrizia Monti
Raman study of poly(alanine-glycine)-based peptides containing tyrosine, valine, and serine as model for the semicrystalline domains of Bombyx mori silk fibroin.
Biopolymers 2004;75(4):314-24.
2004: Juming Yao; Kosuke Ohgo; Rena Sugino; Raghuvansh Kishore; Tetsuo Asakura
Structural analysis of Bombyx mori silk fibroin peptides with formic acid treatment using high-resolution solid-state 13C NMR spectroscopy.
Biomacromolecules 2004;5(5):1763-9.
2004: Kosuke Ohgo; Tracie L Kurano; Kristin K Kumashiro; Tetsuo Asakura
Structure of the model peptides of Bombyx mori silk-elastin like protein studied with solid state NMR.
Biomacromolecules 2004;5(3):744-50.
2004: Juming Yao; Yasumoto Nakazawa; Tetsuo Asakura
Structures of Bombyx mori and Samia cynthia ricini silk fibroins studied with solid-state NMR.
Biomacromolecules 2004;5(3):680-8.
2004: Tetsuo Asakura; Yasumoto Nakazawa
Structure and structural changes of the silk fibroin from Samia cynthia ricini using nuclear magnetic resonance spectroscopy.
Macromolecular bioscience 2004;4(3):175-85.
2004: Tetsuo Asakura; Kohei Suita; Tsunenori Kameda; Sergii Afonin; Anne S Ulrich
Structural role of tyrosine in Bombyx mori silk fibroin, studied by solid-state NMR and molecular mechanics on a model peptide prepared as silk I and II.
Magnetic resonance in chemistry : MRC 2004;42(2):258-66.
2004: Tetsuo Asakura; Chikako Tanaka; Mingying Yang; Juming Yao; Masato Kurokawa
Production and characterization of a silk-like hybrid protein, based on the polyalanine region of Samia cynthia ricini silk fibroin and a cell adhesive region derived from fibronectin.
Biomaterials 2004;25(4):617-24.
2003: Yasumoto Nakazawa; Tetsuo Asakura
Structure determination of a peptide model of the repeated helical domain in Samia cynthia ricini silk fibroin before spinning by a combination of advanced solid-state NMR methods.
Journal of the American Chemical Society 2003;125(24):7230-7.
2003: Chenhua Zhao; Juming Yao; Hiromi Masuda; Raghuvansh Kishore; Tetsuo Asakura
Structural characterization and artificial fiber formation of Bombyx mori silk fibroin in hexafluoro-iso-propanol solvent system.
Biopolymers 2003;69(2):253-9.
2003: Tetsuo Asakura; Koji Nitta; Mingying Yang; Juming Yao; Yasumoto Nakazawa; David L Kaplan
Synthesis and characterization of chimeric silkworm silk.
Biomacromolecules 2003;4(3):815-20.
2003: Yasumoto Nakazawa; Mie Bamba; Satoko Nishio; Tetsuo Asakura
Tightly winding structure of sequential model peptide for repeated helical region in Samia cynthia ricini silk fibroin studied with solid-state NMR.
Protein science : a publication of the Protein Society 2003;12(4):666-71.
2003: Jun Ashida; Kosuke Ohgo; Kohei Komatsu; Ayumi Kubota; Tetsuo Asakura
Determination of the torsion angles of alanine and glycine residues of model compounds of spider silk (AGG)(10) using solid-state NMR methods.
Journal of biomolecular NMR 2003;25(2):91-103.
2003: Tsunenori Kameda; Chenhua Zhao; Jun Ashida; Tetsuo Asakura
Determination of distance of intra-molecular hydrogen bonding in (Ala-Gly)15 with silk I form after removal of the effect of MAS frequency in REDOR experiment.
Journal of magnetic resonance (San Diego, Calif. : 1997) 2003;160(2):91-6.
2003: Patrizia Monti; Paola Taddei; Giuliano Freddi; Kosuke Ohgo; Tetsuo Asakura
Vibrational 13C-cross-polarization/magic angle spinning NMR spectroscopic and thermal characterization of poly(alanine-glycine) as model for silk I Bombyx mori fibroin.
Biopolymers 2003;72(5):329-38.
2003: Juming Yao; Tetsuo Asakura
Synthesis and structural characterization of silk-like materials incorporated with an elastic motif.
Journal of biochemistry 2003;133(1):147-54.
2002: Tetsuo Asakura; Juming Yao
13C CP/MAS NMR study on structural heterogeneity in Bombyx mori silk fiber and their generation by stretching.
Protein science : a publication of the Protein Society 2002;11(11):2706-13.
2002: Yasumoto Nakazawa; Tetsuo Asakura
Heterogeneous exchange behavior of Samia cynthia ricini silk fibroin during helix-coil transition studied with (13)C NMR.
FEBS letters 2002;529(2-3):188-92.
2002: Tetsuo Asakura; Rena Sugino; Tatsushi Okumura; Yasumoto Nakazawa
The role of irregular unit, GAAS, on the secondary structure of Bombyx mori silk fibroin studied with 13C CP/MAS NMR and wide-angle X-ray scattering.
Protein science : a publication of the Protein Society 2002;11(8):1873-7.
2002: Tetsuo Asakura; Juming Yao; Tsutomu Yamane; Kosuke Umemura; Anne S Ulrich
Heterogeneous structure of silk fibers from Bombyx mori resolved by 13C solid-state NMR spectroscopy.
Journal of the American Chemical Society 2002;124(30):8794-5.
2002: Tsunenori Kameda; Yasumoto Nakazawa; Junko Kazuhara; Tsutomu Yamane; Tetsuo Asakura
Determination of intermolecular distance for a model peptide of Bombyx mori silk fibroin, GAGAG, with rotational echo double resonance.
Biopolymers 2002;64(2):80-5.
2002: Tetsuo Asakura; Rena Sugino; Juming Yao; Hidehiko Takashima; Raghuvansh Kishore
Comparative structure analysis of tyrosine and valine residues in unprocessed silk fibroin (silk I) and in the processed silk fiber (silk II) from Bombyx mori using solid-state (13)C,(15)N, and (2)H NMR.
Biochemistry 2002;41(13):4415-24.
2001: Tetsuo Asakura; Tsutomu Yamane; Yasumoto Nakazawa; Tsunenori Kameda; K Ando
Structure of Bombyx mori silk fibroin before spinning in solid state studied with wide angle x-ray scattering and (13)C cross-polarization/magic angle spinning NMR.
Biopolymers 2001;58(5):521-5.
2001: Tetsuo Asakura; Jun Ashida; Tsutomu Yamane; Tsunenori Kameda; Yasumoto Nakazawa; Kosuke Ohgo; K Komatsu
A repeated beta-turn structure in poly(Ala-Gly) as a model for silk I of Bombyx mori silk fibroin studied with two-dimensional spin-diffusion NMR under off magic angle spinning and rotational echo double resonance.
Journal of molecular biology 2001;306(2):291-305.
2001: Manabu Iwadate; Tetsuo Asakura; P V Dubovskii; H Yamada; K Akasaka; Michael P Williamson
Pressure-dependent changes in the structure of the melittin alpha-helix determined by NMR.
Journal of biomolecular NMR 2001;19(2):115-24.
2001: Y Hori; M Demura; Manabu Iwadate; Anne S Ulrich; T Niidome; H Aoyagi; Tetsuo Asakura
Interaction of mastoparan with membranes studied by 1H-NMR spectroscopy in detergent micelles and by solid-state 2H-NMR and 15N-NMR spectroscopy in oriented lipid bilayers.
European journal of biochemistry / FEBS 2001;268(2):302-9.
2000: Manabu Iwadate; E Nagao; Michael P Williamson; M Ueki; Tetsuo Asakura
Structure determination of [Arg8]vasopressin methylenedithioether in dimethylsulfoxide using NMR.
European journal of biochemistry / FEBS 2000;267(14):4504-10.
2000: J Kikuchi; Tetsuo Asakura; K Hasuda; T Ito; K Ohwaku; H Araki; Michael P Williamson
An advantage for use of isotope labeling and NMR chemical shifts to analyze the structure of four homologous IgG-binding domains of staphylococcal protein A.
Journal of biochemical and biophysical methods 2000;42(1-2):35-47.
1999: Y Hori; M Demura; T Niidome; H Aoyagi; Tetsuo Asakura
Orientational behavior of phospholipid membranes with mastoparan studied by 31P solid state NMR.
FEBS letters 1999;455(3):228-32.
1999: M Ueki; T Ikeo; Manabu Iwadate; Tetsuo Asakura; Michael P Williamson; J Slaninová
Solid phase synthesis and biological activities of [Arg8]-vasopressin methylenedithioether.
Bioorganic & medicinal chemistry letters 1999;9(13):1767-72.
1999: J Kikuchi; Tetsuo Asakura; Paul A Loach; Pamela S Parkes-Loach; K Shimada; C Neil Hunter; Matthew J Conroy; Michael P Williamson
A light-harvesting antenna protein retains its folded conformation in the absence of protein-lipid and protein-pigment interactions.
Biopolymers 1999;49(5):361-72.
1999: Tetsuo Asakura; Manabu Iwadate; M Demura; Michael P Williamson
Structural analysis of silk with 13C NMR chemical shift contour plots.
International journal of biological macromolecules 1999;24(2-3):167-71.
1999: Manabu Iwadate; Tetsuo Asakura; Michael P Williamson
C alpha and C beta carbon-13 chemical shifts in proteins from an empirical database.
Journal of biomolecular NMR 1999;13(3):199-211.
1998: Manabu Iwadate; Tetsuo Asakura; Michael P Williamson
The structure of the melittin tetramer at different temperatures--an NOE-based calculation with chemical shift refinement.
European journal of biochemistry / FEBS 1998;257(2):479-87.
1995: Tetsuo Asakura; M Demura; K Taoka; Michael P Williamson
The relationship between amide proton chemical shifts and secondary structure in proteins.
Journal of biomolecular NMR 1995;6(3):227-36.
1992: Michael P Williamson; Tetsuo Asakura
The application of 1H NMR chemical shift calculations to diastereotopic groups in proteins.
FEBS letters 1992;302(2):185-8.
1992: Michael P Williamson; Tetsuo Asakura; E Nakamura; M Demura
A method for the calculation of protein alpha-CH chemical shifts.
Journal of biomolecular NMR 1992;2(1):83-98.