Heterogeneous Hydration of p53/MDM2 Complex.

ABSTRACT: Water-mediated interactions play critical roles in biomolecular recognition processes. Explicit solvent molecular dynamics (MD) simulations and the variational implicit-solvent model (VISM) are used to study those hydration properties during binding for the biologically important p53/MDM2 complex. Unlike simple model solutes, in such a realistic and heterogeneous solute-solvent system with both geometrical and chemical complexity, the local water distribution sensitively depends on nearby amino acid properties and the geometric shape of the protein. We show that the VISM can accurately describe the locations of high and low density solvation shells identified by the MD simulations and can explain them by a local coupling balance of solvent-solute interaction potentials and curvature. In pa

SUBMITTER: Guo Z 

PROVIDER: S-EPMC3958133 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature