Journal
PROTEIN SCIENCE
Volume 11, Issue 9, Pages 2080-2090Publisher
WILEY-BLACKWELL
DOI: 10.1110/ps.0214002
Keywords
solvation; hydration; hydration site; molecular dynamics; acetylcholinesterase
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Structural and dynamic properties of water molecules around acetylcholinesterase are examined from a 10-nsec molecular dynamics simulation to help understand how the protein alters water properties. Water structure is broken down into hydration sites constructed from the water density <3.6 angstrom from the protein surface. These sites are characterized according to occupancy, number of water neighbors, hydrogen bonds, dipole moment, and residence time. The site description provides a convenient means to describe the extent and localization of these properties. Determining the network of paths that waters follow from site to site and measuring the rate of flow of waters from the sites to the bulk make it possible to quantitatively study the time scales and paths that water molecules follow as they move around the protein.
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