Title :
Temperature and hydration dependence of low-frequency dynamics of a small globular protein studied by terahertz time-domain spectroscopy
Author :
Yamamoto, Naoji ; Tamura, A. ; Tominaga, Kazuhiro
Author_Institution :
Mol. Photoscience Res. Center, Kobe Univ., Kobe, Japan
Abstract :
Temperature- and hydration-dependent terahertz spectra of hen egg white lysozyme were obtained by using terahertz time-domain spectroscopy. Analysis of the complex dielectric spectra indicated hydration-water dynamics at around 2 picoseconds were thermally activated above 230 K upon hydration.
Keywords :
biochemistry; enzymes; molecular biophysics; solvation; terahertz wave spectra; dielectric spectra; hen egg white lysozyme; hydration-dependent terahertz spectra; hydration-water dynamics; low-frequency dynamics; small globular protein; temperature-dependent terahertz spectra; terahertz time-domain spectroscopy; thermal activation; Nitrogen; Proteins; Substrates; Temperature measurement;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665562
