Re: [AMBER] Analysis of MD simulation

From: <steinbrt.rci.rutgers.edu>
Date: Sun, 26 Sep 2010 00:39:12 -0400 (EDT)

Hi,

> BETA = 8pi^2/3 RMSD^2
>
> :)
>
> you may be missing a factor here

that may be true and I still could not find a definite citation for that
(in the 10 min I dedicated to the search). My pdb format guide tells me
that B can be calculated from the anisotropic factors as:

B(eq) = 8pi**2 {1/3 [Uxx + Uyy + Uzz]}

Here, U are the mean square displacements in one axis, no? Maybe we are
just comparing two different formulations of the same definition, but if
you have a literature source to clear that up, Id be happy to stand
corrected...

Thomas

Dr. Thomas Steinbrecher
BioMaps Institute
Rutgers University
610 Taylor Rd.
Piscataway, NJ 08854

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Received on Sat Sep 25 2010 - 22:00:03 PDT
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