Difference between revisions of "Task 9: Normal Mode Analysis"

From Bioinformatikpedia
(Webnma)
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== Webnma ==
 
== Webnma ==
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=== Results ===
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'''Plots of atomic displacement'''
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* Mode 7
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[[File:PAH_WEBNMA_Mode7plot.png]]
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* Mode 8
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[[File:PAH_WEBNMA_Mode8plot.png]]
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* Mode 9
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[[File:PAH_WEBNMA_Mode9plot.png]]
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* Mode 10
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[[File:PAH_WEBNMA_Mode10plot.png]]
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* Mode 11
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[[File:PAH_WEBNMA_Mode11plot.png]]
   
 
== ElNemo ==
 
== ElNemo ==

Revision as of 13:54, 9 August 2011

There are several forces acting within a protein. Most of these forces have one or more equilibrium states. In reality the protein is flexible. That means, that the atoms of the system swing around these equilibrium states. These swinging around the equilibrium states can be approximated by the harmonic approximation. The forces can then be replaced by a less complex system of springs. With this model it is possible to calculate large motions of the protein by Normal Mode Analysis.

In opposite to Molecular Dynamics this is very fast and it is not a simulation it is a calculation of possible simple and large motions.

In this task we want to try several servers, which calculate normal mode analysis. A detailed description of the task can be found here. For most runs we used the structure 1J8U for our protein PAH. In the case of the all-atom NMA we used a smaller protein to test the server and this kind of approach.

Webnma

Results

Plots of atomic displacement

  • Mode 7

PAH WEBNMA Mode7plot.png

  • Mode 8

PAH WEBNMA Mode8plot.png

  • Mode 9

PAH WEBNMA Mode9plot.png

  • Mode 10

PAH WEBNMA Mode10plot.png

  • Mode 11

PAH WEBNMA Mode11plot.png

ElNemo

Anisotropic Network Model web server

oGNM – Gaussian network model

NOMAD-Ref

All-atom NMA using Gromacs on the NOMAD-Ref server