Re: [AMBER] unusually high entropy values MMPBSA quasi-harmonic

From: David A Case <david.case.rutgers.edu>
Date: Mon, 19 Apr 2021 14:38:59 -0400

On Mon, Apr 19, 2021, Vaibhav Dixit wrote:

>I have a total of 2000 frames in the trajectory.
>How many would you consider sufficient for this type of complex with a
>total of 234 residues?

You need a minimum of 3N frames to get a complete quasiharmonic calculation
of a system with N atoms. Since you have about 40,000 atoms, you would need
at least 120,000 frames (and realistically, many times this number) in order
to carry out a quasiharmonic analysis.

....dac


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Received on Mon Apr 19 2021 - 12:00:02 PDT
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