Re: [AMBER] Magnesium charges using leaprc.ff99SB - metals move away

From: David A Case <case.biomaps.rutgers.edu>
Date: Fri, 9 Aug 2013 12:36:06 -0400

On Fri, Aug 09, 2013, Mallipeddi, Premalatha wrote:

> I tried the desc command, it works for protein residues but not for MG.

You have to be peristent.

> > desc MG2.197.MG
> STRING (with no reference): 'MG2.197.MG'

This means that what you typed in is not known to LEaP. You are asking leap
to describe the MG2 unit, *not* the protein that you read in. The MG2 unit
has only 1 residue, not 197, so clearly the suggested command will fail as
shown.

If "desc" seems not to work, that means that you and LEaP are not agreeing
on atom, residue, or unit nomenclature. Keep trying, starting with simple
arguments like "desc MG2" or "desc receptor", etc. Then you can hone in
on the information you want. Don't be afraid or unwilling to experiment--
you will soon learn the syntax.

...dac


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Received on Fri Aug 09 2013 - 10:00:02 PDT
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