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Journal ArticleDOI

Dynamics of folded proteins

J. A. McCammon, +2 more
- 16 Jun 1977 - 
- Vol. 267, Iss: 5612, pp 585-590
TLDR
The dynamics of a folded globular protein have been studied by solving the equations of motion for the atoms with an empirical potential energy function and suggest that the protein interior is fluid-like in that the local atom motions have a diffusional character.
Abstract
The dynamics of a folded globular protein (bovine pancreatic trypsin inhibitor) have been studied by solving the equations of motion for the atoms with an empirical potential energy function. The results provide the magnitude, correlations and decay of fluctuations about the average structure. These suggest that the protein interior is fluid-like in that the local atom motions have a diffusional character.

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Citations
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Journal ArticleDOI

CHARMM: A program for macromolecular energy, minimization, and dynamics calculations

TL;DR: The CHARMM (Chemistry at Harvard Macromolecular Mechanics) as discussed by the authors is a computer program that uses empirical energy functions to model macromolescular systems, and it can read or model build structures, energy minimize them by first- or second-derivative techniques, perform a normal mode or molecular dynamics simulation, and analyze the structural, equilibrium, and dynamic properties determined in these calculations.
Journal ArticleDOI

Gromacs 4.5

TL;DR: A range of new simulation algorithms and features developed during the past 4 years are presented, leading up to the GROMACS 4.5 software package, which provides extremely high performance and cost efficiency for high-throughput as well as massively parallel simulations.
Book ChapterDOI

Interaction Models for Water in Relation to Protein Hydration

TL;DR: In this article, a three-point charge model (on hydrogen and oxygen positions) with a Lennard-Jones 6-12 potential on the oxygen positions only was developed, and parameters for the model were determined from 12 molecular dynamics runs covering the two-dimensional parameter space of charge and oxygen repulsion.
References
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Book

Diffusion in solids

Journal ArticleDOI

Stereochemistry of cooperative effects in haemoglobin.

TL;DR: The oxygenation of haemoglobin is accompanied by structural changes in the subunits triggered by shifts of the iron atoms relative to the porphyrin and, in the β-subunits, also by the steric effect of oxygen itself.
Journal ArticleDOI

Correlations in the Motion of Atoms in Liquid Argon

TL;DR: In this article, a system of 864 particles interacting with a Lennard-Jones potential and obeying classical equations of motion has been studied on a digital computer (CDC 3600) to simulate molecular dynamics in liquid argon at 94.4 degrees K and a density of 1.374 g.
Journal ArticleDOI

Dynamics of ligand binding to myoglobin

TL;DR: The nonexponential rebinding observed at low temperatures and in solid samples implies that the innermost barrier has a spectrum of activation energies, similar to how myoglobin achieves specificity and order.
Journal ArticleDOI

Exposure of tryptophanyl residues in proteins. Quantitative determination by fluorescence quenching studies.

TL;DR: The value of this probing technique lies in its ability to sense not only the steady-state exposure of a residue in a protein, but also its dynamic exposure.
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