Re: [AMBER] MMPBSA.py error - VDW ****

From: Jason Swails <jason.swails.gmail.com>
Date: Thu, 28 Apr 2011 00:47:31 -0700

Hi Jesper,

Can you visualize your trajectories? That is -- load the topology files and
intermediate trajectory files into VMD together to see if they're warped.

Specifically, try to visualize _MMPBSA_mutant_complex.mdcrd with your mutant
complex prmtop (and likewise for the receptor and ligand for both the mutant
and normal forms). Which structures look warped?

Thanks!
Jason

2011/4/28 Jesper Sørensen <lists.jsx.dk>

> Hi,
>
> I have performed a few ALA scanning calculations, and it works well for all
> but one mutation.
>
> When I look through the file "_MMPBSA_mutant_ligand_pb.mdout"
>
> I find lines with VDW values out of range spread out through the file:
>
> VDWAALS = ************* EEL = -45.9452 EPB =
> -939.3608
>
> It is a simple isoleucine to alanine mutation and this has worked for other
> residues that I have mutated.
>
> What can I do? Is there something that I am overlooking?
>
> I am using AMBER 11 and AMBERTOOLS 1.4
>
> Best,
> Jesper
>
>
>
>
>
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>



-- 
Jason M. Swails
Quantum Theory Project,
University of Florida
Ph.D. Candidate
352-392-4032
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Received on Thu Apr 28 2011 - 01:00:03 PDT
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