会议论文详细信息
16th Russian Youth Conference on Physics and Astronomy | |
Study of low-frequency dynamics of short peptides by Brillouin light scattering and Monte-Carlo global energy minimization | |
物理学;天文学 | |
Vashchenkov, V.E.^1,2 ; Fedoseev, A.I.^1,2 ; Petukhov, M.G.^3,4 ; Khavinson, V Kh^5 ; Savvateeva-Popova, E.V.^2,5 ; Lushnikov, S.G.^1,2 | |
Ioffe Physical Technical Institute, St.Petersburg, Russia^1 | |
St.Petersburg State University, St.Petersburg, Russia^2 | |
St.Petersburg State Polytechnical University, St.Petersburg, Russia^3 | |
Petersburg Institute of Nuclear Physics, Gatchina, Leningrad district, Russia^4 | |
Pavlov Institute of Physiology, St.Petersburg, Russia^5 | |
关键词: Brillouin light scattering; Di-peptides; Global energy; High temperature; Hypersound velocity; Low frequency dynamics; Molecular simulations; Tetra peptide; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/572/1/012015/pdf DOI : 10.1088/1742-6596/572/1/012015 |
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学科分类:天文学(综合) | |
来源: IOP | |
【 摘 要 】
Brillouin light scattering studies of the behavior of hypersound velocity in solutions of short peptides Asp-Ser, Glu-Asp-Arg, Ala-Glu-Asp-Leu with widely varying concentrations at temperatures ranging from 295 to 360K are presented. As shown by analysis of experimental data and molecular simulation, the dipeptide Asp-Ser is characterized by formation of dimers which decompose at high temperatures. High-concentration solutions of tri- and tetrapeptides form aggregates at high temperatures which are preserved on cooling.
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