Are the subglobular oscillations of protein molecule in water overdamped?

Yury M. Romanovsky; Alexei V. Netrebko; Andrey Yuri Chikishev

doi:10.1117/12.475612

16 July 2002 Are the subglobular oscillations of protein molecule in water overdamped?

Yury M. Romanovsky, Alexei V. Netrebko, Andrey Yuri Chikishev

Proceedings Volume 4707, Saratov Fall Meeting 2001: Optical Technologies in Biophysics and Medicine III; (2002) https://doi.org/10.1117/12.475612
Event: Saratov Fall Meeting 2001, 2001, Saratov, Russian Federation

Abstract

Raman spectra of crystalline subglobular proteins exhibit peaks in the low-frequency spectral range. These peaks can be related to resonance oscillations of subglobules and possibly play an important role in the catalytic act. The low-frequency spectral features were not observed in aqueous solutions. According to the hydrodynamics, the corresponding oscillations must be overdamped. The results obtained by the methods of molecular dynamics how that the Q-factor of subglobular oscillations can be larger than 10, which stimulated further experimental studies of solutions of proteins.

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Yury M. Romanovsky, Alexei V. Netrebko, and Andrey Yuri Chikishev "Are the subglobular oscillations of protein molecule in water overdamped?", Proc. SPIE 4707, Saratov Fall Meeting 2001: Optical Technologies in Biophysics and Medicine III, (16 July 2002); https://doi.org/10.1117/12.475612

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