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손동환 Yoshimasa Kyogoku,양정선,유병설 ( Dong Hwan Sohn,Yoshimasa Kyogoku,Jeong Sun Yang,Byung Sul Yu ) 생화학분자생물학회 1990 BMB Reports Vol.23 No.3
It was attempted to elucidate the selective associational properties of nucleic acid bases with peptides by use of spectroscopic tools. Monopeptide and dipeptide models interact with uracil through two hydrogen bond bridges. The addition of peptidyl group produces the binding with guanosine derivative, while monopeptide cannot interact. Adenine and uracil derivatives associate with glutamic acid much more strongly than any other amino acids. In the case of guanosine, it is conspicuous that glutamine can uniquely interact with it. These results might give the information on the interaction between peptide and nucleic acid.
Influence of Compositions of Sintered Ti-Ni Alloys on their Thermo-mechanical Properties
Kyogoku Hideki,Ikeda Tetsuya,Komatsu Shinichiro 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
This paper presents the influence of the compositions of sintered Ti-Ni alloys on their thermo-mechanical properties. The Ti-Ni alloys having various compositions from 50at%Ni to 51at%Ni were sintered using elemental Ti and Ni powders by a pulse-current pressure sintering equipment. The deformation resistance in stress-strain curves increased with an increase in Ni content. In the case of Ti-50at%Ni, tensile strength and elongation were more than 500 MPa and 7%, respectively. The increase in Ni content also makes the transformation temperatures lower. The deformation resistance at a test temperature change from 293K and 353K in isothermal tensile test increased with elevating test temperature.
High-Resolution Nuclear Magnetic Resonance of Biochemical Substances
Kyogoku, Yoshimasa 생화학분자생물학회 1973 한국생화학회지 Vol.6 No.2
Synopsis: The principle of nuclear magnetic resonance and its usefulness in the fields of biochemistry and biophysics are described. The proton 220 MHz resonance spectrum of flavin adenine dinucleotide was taken. From the analysis of the spectrum a probable structure of FAD in aqueous solution was proposed, where the adenine and isoalloxazine rings are stacked with their long axes perpendicular to each other. Although the model is the most stable one, whole structure in solution may be explained by the dynamical equilibrium among several folded and open forms. $^{13}C$ resonance spectrum of phosphatidylethanolamine is also given. Its statical and dynamical structure is discussed.
High - Resolution Nuclear Magnetic Resonance of Biochemical Substances
Yoshimasa Kyogoku 생화학분자생물학회 1973 BMB Reports Vol.6 No.2
The principle of nuclear magnetic resonance and its usefulness in the fields of biochemistry and biophysics are described. The proton 220 MHz resonance spectrum of flavin adenine dinucleotide was taken. From the analysis of the spectrum a probable structure of FAD in aqueous solution was proposed, where the adenine and isoalloxazine rings are stacked with their long axes perpendicular to each other. Although the model is the most stable one, whole structure in solution may be explained by the dynamical equilibrium among several folded and open forms. ^(13)C resonance spectrum of phosphatidylethanolamine is also given. Its statical and dynamical structure is discussed.