Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
SLOW DYNAMICS OF WATER-MOLECULES ON THE SURFACE OF A GLOBULAR PROTEIN
Autore:
BELLISSENTFUNEL MC; ZANOTTI JM; CHEN SH;
Indirizzi:
CEA SACLAY,CNRS,LAB LEON BRILLOUIN F-91191 GIF SUR YVETTE FRANCE MIT,DEPT NUCL ENGN CAMBRIDGE MA 02139
Titolo Testata:
Faraday discussions
fascicolo: 103, , anno: 1996,
pagine: 281 - 294
SICI:
1359-6640(1996):103<281:SDOWOT>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
INELASTIC NEUTRON-SCATTERING; SINGLE-PARTICLE DYNAMICS; MAGNETIC-RELAXATION; SUPERCOOLED LIQUIDS; RESIDENCE TIMES; HYDRATION WATER; SIMULATION; SOLVATION; DIFFUSION; MYOGLOBIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
44
Recensione:
Indirizzi per estratti:
Citazione:
M.C. Bellissentfunel et al., "SLOW DYNAMICS OF WATER-MOLECULES ON THE SURFACE OF A GLOBULAR PROTEIN", Faraday discussions, (103), 1996, pp. 281-294

Abstract

Water is essential for the stability and function of biological macromolecules. High-resolution quasi-elastic neutron scattering studies ofthe translational dynamics of water molecules on the surface of a deuteriated protein are presented. The quasi-elastic spectra from the interfacial H2O are analysed by a confined diffusion model to obtain the elastic incoherent structure factor (EISF), the short-time self-diffusion constant (D) and the residence time, tau(0), as functions of coverage and temperature. The combined effects of the hydration level and temperature on the retardation of the single-particle motions are discussed in the light of available NMR relaxation data and of a well knownmodel of alpha-relaxation from the theory of kinetic glass transitions in dense supercooled fluids. The vibrational density of states of interfacial water is presented as a function of temperature and for two levels of hydration of the protein.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 17:49:53