AMBER Archive (2006)

Subject: Re: AMBER: ptraj warning while loading reference

From: Vlad Cojocaru (Vlad.Cojocaru_at_eml-r.villa-bosch.de)
Date: Mon Feb 27 2006 - 11:00:43 CST


Dear David,

I have checked that some times and it does give the same results so it
really looks innocuous.. However, its a bit painful to do the checking
all the time because I have long scripts that automatically go through a
series of analysis steps... In some of them I need the TER cards to be
there ...

So I guess one can live with the warning if its known to be harmless ...
and so far it does seem harmless ...

Thanks
vlad

David A. Case wrote:

>On Mon, Feb 27, 2006, Vlad Cojocaru wrote:
>
>
>
>> When calculating the rms of a trajectory to a reference structure in
>>pdb format created by 'ambpdb -aatm' (see script below), I am always
>>getting the warning below.
>>
>>WARNING in ptrajProcessInputCoordinates(): Unexpected number of atoms
>> encountered when reading PDB!
>> loadPdb returned 7665
>> getCoordinatesFromPdb returned 7661
>> actual number of atoms is 7661
>>
>>
>
>This is a long-standing bug in ptraj. The best way to be sure that it is
>innocuous is to remove all non-ATOM cards from the input pdb and see if you
>still get the same results (without the warning).
>
>..good luck...dac
>
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-- 
Dr. Vlad Cojocaru
EML Research gGmbH
Molecular and Cellular Modeling Group
Schloss-Wolfsbrunnenweg 33
69118 Heidelberg, Germany
Phone: +49-6221-533266
Fax: +49-6221-533298
e-mail: Vlad.Cojocaru_at_eml-r.villa-bosch.de
http://projects.villa-bosch.de/mcm/people/cojocaru/

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