Structure and internal dynamics of the bovine pancreatic trypsin inhibitor in aqueous solution from long-time molecular dynamics simulations

From Duplicate 2 ( Structure and internal dynamics of the bovine pancreatic trypsin inhibitor in aqueous solution from long-time molecular dynamics simulations - Brunne, R M; Berndt, K D; Guntert, P; Wuthrich, K; van Gunsteren, W F ) And Duplicate 3 ( Structure and internal dynamics of the bovine pancreatic trypsin inhibitor in aqueous solution from long-time molecular dynamics simulations. - Brunne, R; Berndt, K; Güntert, P; Wüthrich, K; van Gunsteren, W )
Structural and dynamic properties of bovine pancreatic trypsin inhibitor (BPTI) in aqueous solution are investigated using two molecular dynamics (MD) simulations: one of 1.4 ns length and one of 0.8 ns length in which atom-atom distance bounds derived from NMR spectroscopy are included in the potential energy function to make the trajectory satisfy these experimental data more closely. The simulated properties of BPTI are compared with crystal and solution structures of BPTI, and found to be in agreement with the available experimental data. The best agreement with experiment was obtained when atom-atom distance restraints were applied in a time-averaged manner in the simulation. The polypeptide segments found to be most flexible in the MD simulations coincide closely with those showing differences between the crystal and solution structures of BPTI.

By the author/editor: Brunne, R M; Berndt, Kurt D; Güntert, P; Wüthrich, K; van Gunsteren, W ...; show more...; Van Gunsteren, W ...; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Structural Biolo ...

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