Re: [AMBER] Atom Expression in NAB

From: sunita gupta <sunita.bio.gmail.com>
Date: Mon, 9 Dec 2013 10:51:09 +0530

My another concern is to change the cut-off parameter from 100(default) to
12 A while minimization using minab.
I copied minab.c and minab.nab file into my local directory and changed the
values, but could not succeed.
Somewhere I read about recompilation...dont know how to do it. Also, I want
to know about MPI implementation in NAB .


Many Thanks



On Mon, Dec 9, 2013 at 10:41 AM, sunita gupta <sunita.bio.gmail.com> wrote:

> Thanks a ton.
>
>
> On Sun, Dec 8, 2013 at 9:59 PM, case <case.biomaps.rutgers.edu> wrote:
>
>> On Sun, Dec 08, 2013, sunita gupta wrote:
>>
>> > I have a protein-lignad complex (231 residues protein and 232nd residue
>> as
>> > ligand). While setting up MD for this complex I want to fix the protein,
>> > and if I am selecting ':1-231' as restrainmask, it is selecting the
>> ligand
>> > as well.
>>
>> NAB atom expressions are different than those in the rest of Amber: they
>> have three sections (chain (aka strand, aka molecule), residue, atom), and
>> the residue numbers start over at 1 for each new chain.
>>
>> Hence, you atom expression selects residues numbered 1-231 in each chain:
>> this
>> will include the ligand (which is presumably the first residue in the
>> second
>> chain.) What you probably want is "1::" (for the entire first molecule).
>>
>> ...good luck...dac
>>
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>
>
>
> --
> --
> SUNITA GUPTA
> Senior Research Fellow
> Bioinformatics Centre
> Jawaharlal Nehru University
> New Delhi- 110067
> Email- sunita.bio.gmail.com
>
>
>
>


-- 
-- 
SUNITA GUPTA
Senior Research Fellow
Bioinformatics Centre
Jawaharlal Nehru University
New Delhi- 110067
Email- sunita.bio.gmail.com
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Received on Sun Dec 08 2013 - 21:30:03 PST
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