Molecular Dynamics Analysis GLA
From Bioinformatikpedia
by Benjamin Drexler and Fabian Grandke
Contents
Introduction
In this task we analysed the simulated data that have been created within task 8. We used several tools of GROMACS to analyse the data and Pymol to visualize them.
Methods/Materials
Results
Wildtype
Brief check of the results
How many frames are in the trajectory file and what is the time resolution?
Wildtype | Mutation 3 | Mutation 8 |
---|---|---|
2001 frames | 2001 frames | 2001 frames |
time resolution of 5ps | time resolution of 5ps | time resolution of 5ps |
How long did the simulation run in real time (hours), what was the simulation speed (ns/day) and how many years would the simulation take to reach a second?
Wildtype | Mutation 3 | Mutation 8 |
---|---|---|
18h06:37 | 18h29:13 | 18h19:11 |
13.252 ns/day | 12.982 ns/day | 13.101 ns/day |
~206740 years | ~211040 years | ~209123 years |
Which contribution to the potential energy accounts for most of the calculations?
Wildtype | Mutation 3 | Mutation 8 |
---|---|---|
-8.52573e+05 kJ/mol | -8.53327e+05 kJ/mol | -8.52539e+05 kJ/mol |
Visualization of the results
Quality assurance
Convergence of energy terms
Interaction Energy: Coulomb
Interaction Energy: Van der Waals
Minimum distances between periodic images
Root mean square fluctuations
Convergence of RMSD
Convergence of radius of gyration
Structural analysis: properties derived from configurations
Solvent accessible surface area
Hydrogen bonds
Salt bridges
Ramachandran (phi/psi) plots=
Analysis of dynamics and time-averaged properties
Root mean square deviations again
Cluster analysis
Distance RMSD
References
<references />