Title : Low-frequency vibrational properties of lysozyme in sugar aqueous solutions: a Raman scattering and molecular dynamics simulation study.

Pub. Date : 2009 Dec 28

PMID : 20059115






6 Functional Relationships(s)
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1 Low-frequency vibrational properties of lysozyme in sugar aqueous solutions: a Raman scattering and molecular dynamics simulation study. Sugars lysozyme Homo sapiens
2 The low-frequency (omega<400 cm(-1)) vibrational properties of lysozyme in aqueous solutions of three well-known protecting sugars, namely, trehalose, maltose, and sucrose, have been investigated by means of complementary Raman scattering experiments and molecular dynamics simulations. Sugars lysozyme Homo sapiens
3 These results suggest that sugars stiffen the environment experienced by lysozyme atoms, thereby counteracting the softening of protein vibrational modes upon denaturation, observed at high temperature in the Raman susceptibility of the lysozyme/water solution and in the computed VDOS of unfolded lysozyme in water. Sugars lysozyme Homo sapiens
4 These results suggest that sugars stiffen the environment experienced by lysozyme atoms, thereby counteracting the softening of protein vibrational modes upon denaturation, observed at high temperature in the Raman susceptibility of the lysozyme/water solution and in the computed VDOS of unfolded lysozyme in water. Sugars lysozyme Homo sapiens
5 These results suggest that sugars stiffen the environment experienced by lysozyme atoms, thereby counteracting the softening of protein vibrational modes upon denaturation, observed at high temperature in the Raman susceptibility of the lysozyme/water solution and in the computed VDOS of unfolded lysozyme in water. Sugars lysozyme Homo sapiens
6 Finally, the Raman susceptibility of sugar/water solutions and the calculated VDOS of water in the different lysozyme solutions confirm that sugars induce a significant strengthening of the hydrogen bond network of water that may stabilize proteins at high temperatures. Sugars lysozyme Homo sapiens