G
Giuseppe Zaccai
Researcher at Centre national de la recherche scientifique
Publications - 163
Citations - 10292
Giuseppe Zaccai is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Neutron scattering & Bacteriorhodopsin. The author has an hindex of 50, co-authored 161 publications receiving 9787 citations. Previous affiliations of Giuseppe Zaccai include Brookhaven National Laboratory.
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Protein hydration in solution: Experimental observation by x-ray and neutron scattering
TL;DR: The results point to the existence of a first hydration shell with an average density approximately 10% larger than that of the bulk solvent in the conditions studied, which suggests that this may be a general property of aqueous interfaces.
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How Soft Is a Protein? A Protein Dynamics Force Constant Measured by Neutron Scattering
TL;DR: Important advantages of the neutron method are that it can characterize the dynamics of any type of biological sample-which need not be crystalline or monodisperse-and that it enables researchers to focus on the dynamicsof specific parts of a complex structure with deuterium labeling.
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Halophilic adaptation of enzymes.
TL;DR: It is described how thermodynamic observations, such as parameters pertaining to solvent–protein interactions or enzyme-unfolding kinetics, depend strongly on solvent composition and reveal the important role played by water and ion binding to halophilic proteins.
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Neutron diffraction studies on selectively deuterated phospholipid bilayers
TL;DR: The mean position of the deuterated segments within the membrane can be determined in most cases to a precision of better than ±1 Å, and the average orientation of the phosphocholine group in the gel state as well as the liquid crystalline state is almost parallel to the membrane surface.
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Thermal motions and function of bacteriorhodopsin in purple membranes: effects of temperature and hydration studied by neutron scattering
TL;DR: Results support the hypothesis, made from previous neutron diffraction studies, that the "softness" of the membrane modulates the function of bacteriorhodopsin by allowing or not allowing large-amplitude motions in the protein.