2005 Fiscal Year Final Research Report Summary
Preparation of nano-apatite complex of silk-like materials with genetic engineering methods designed by detailed structural information on silk fibroins.
Project/Area Number |
16350121
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Polymer/Textile materials
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Research Institution | National University Corporation Tokyo University of Agriculture and Technology |
Principal Investigator |
ASAKURA Tetsuo Tokyo University of Agriculture and Technology Graduate School, Institute of Symbiotic Science and Technology, Professor, 大学院・共生科学技術研究部, 教授 (30139208)
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Co-Investigator(Kenkyū-buntansha) |
NISHIYAMA Norihiro Nihon University, School of dentistry at Matsudo, Professor, 松戸歯学部, 教授 (90112953)
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Project Period (FY) |
2004 – 2005
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Keywords | Silk-like Protein / Solid state NMR Analysis / Biomaterials / Ca Binding Site / Lamella Structure / Peptide Solid Phase Synthesis / CalbindinD9K / Shell Nacreous Matrix Protein |
Research Abstract |
The purpose of this project is to develop new silk-like materials for regeneration of bone on the basis of the lamella structure of the crystalline domain of silk fibroins and selective Ca^<2+> binding to the turn region. The generation of the lamella structure was proved for ^<13>C selectively -labeled (Ala-Gly)_<15> peptide which can be considered as the model of the crystalline domain using solid state NMR method. The stem part consisted of the repeated eight amino acid sequences. Several model peptides with silk sequences, (Ala)_<12>, (Ala-Gly)_6, (Ala-Gly-Gly)_4,(Ala-Gly-Gly-Gly)_3 and Ca^<2+> binding sites from Calbindin D_<9k> or Shell Nacreous Matrix Protein MSI60 were synthesized to study the character of new silk-like materials containing Ca^<2+> binding sites using solid state NMR. In addition, the silk-like proteins containing Ca binding site from MSI60 with longer sequences were also prepared with genetic engineering method. The yield of the proteins prepared by the cultivation of E.coli was relatively high ; about 50 mg/l. Ca binding to the surface of the proteins was performed by soaking the film of the protein in Ca-containing aqueous solvents alternatively. These silk-like proteins with hydroxyl apatite could be produced after these Ca binding experiments. These materials can be used for new silk-like materials for regeneration of bone. These results have been published in the international Journals, Protein Science and Biomacromolecules.
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Research Products
(46 results)
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[Journal Article] Biodegradation of Multilayer Silk Fibroin and Hydroxyapatite Composite Material.2006
Author(s)
Kino, R., Ikoma, T., Yunoki, S., Monkawa, A., Matsuda, A., Kagata, G., Asakura, T., Munekata, M., Tanaka, J.
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Journal Title
Key Engineeering Materials 309-311
Pages: 1169-1172
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Deposition of bone-like apatite on modified silk fibroin films from simulated body fluid.2006
Author(s)
Kino, R., Ikoma, T., Monkawa, A., Yunoki, S., Munekata, M., Tanaka, J., Asakura, T.
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Journal Title
J. Appl. Polym. Sci. 99
Pages: 2822-2830
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Biodegradation of Multilayer silk Fibroin and Hydroxyapatite Composite Material.2006
Author(s)
Kino, R., Ikoma, T., Yunoki, S., Momkawa, A., Matsuda, A., Kagata, G., Asakura, T., Munekata, M., Tanaka, J.
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Journal Title
Key Engineeering Materials 309-311
Pages: 1169-1172
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Deposition of bone-like apatite on modified silk fibroin films from simulated body fluid.2006
Author(s)
Kino, R., Ikoma, T., Monkawa, A., Yunoki, S., Munekata, M., Tanaka, J., Asakura, T.
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Journal Title
J.Appl.Polym.Sci. 99
Pages: 2822-2830
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 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 ^<13>C Cross-Polarization/Magic-Angle Spinning NMR Study.2005
Author(s)
Asakura, T., Ohgo, K., Ishida, T., Taddei, P., Monti, P., Kishore, R.
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Journal Title
Biomacromolecules 6
Pages: 468-474
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Structural Determination of an Elastin-Mimetic Model Peptide, (Val-Pro-Gly-Val-Gly)6, Studied by ^<13>C CP/MAS NMR Chemical Shifts, Two-Dimensional off Magic Angle Spinning Spin-Diffusion NMR, Rotational Echo Double Resonance, and Statistical Distribution of Torsion Angles from Protein Data Bank.2005
Author(s)
Ohgo, K., Ashida, J., Kumashiro, K.K., Asakura, T.
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Journal Title
Macromolecules 38
Pages: 6038-6047
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Structural Determination of an Elastin-Mimetic Model Peptide, (Val-Pro-Gly-Val-Gly)6, Studied by ^<13>C CP/MAS NMR Chemical Shifts, Two-Dimensional off Magic Angle Spinning Spin-Diffusion NMR, Rotational Echo Double Resonance, and Statistical Distribution of Torsion Angles from Protein Data Bank.2005
Author(s)
Ohgo, K., Ashida, J., Kumashiro, K.K, Asakura, T.
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Journal Title
Macromolecules 38
Pages: 6038-6047
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 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.2004
Author(s)
Asakura, T., Tanaka, C., Yang, M., Yao, J., Kurokawa, M.
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Journal Title
Biomaterials 25
Pages: 617-624
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Ulrich Anne, S., 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.2004
Author(s)
Asakura, T., Suita, K., Kameda, T., Afonin, S.
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Journal Title
Magnetic resonance in chemistry 42
Pages: 258-266
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Structural role of tyrosine in Bombyx mori silk fibroin, studied by solid-state NMR and molecular mechanics on a model peptide prepared as slik I and II.2004
Author(s)
Asakura, T., Suita, K., Kameda, T., Afonin, S., Ulrich Anne, S.
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Journal Title
Magnetic resonance in chemistry 42
Pages: 258-266
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Production of interferon-beta by fibroblast cells on membranes prepared with RGD-containing peptides.2004
Author(s)
Higuchi, A., Takanashi, Y., Tsuzuki, N., Asakura, T., Cho, C.-S., Akaike, T., Hara, M.
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Journal Title
J Biomed Mater Res A 65
Pages: 369-378
Description
「研究成果報告書概要(欧文)」より
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