[ccp4bb] How to create electrostatic surface of modified DNA by APBS?

2014-04-24 Thread Xiaoming Ren
Dear all:

I'm having a problem create the electrostatic surface for a DNA chain 
containing several modified nucleotides. APBS could not identify those residues 
and reported them as unassigned.

What should I do to solve this problem?

Thanks a lot and best,
Xiaoming


Re: [ccp4bb] How to create electrostatic surface of modified DNA by APBS?

2014-04-24 Thread Boaz Shaanan
Hi,

It's pdb2pqr problem (unknown residue). I guess you ran pdb2pqr prior to 
running APBS, if not, you should. So, you should submit your question to either 
the APBS or pdb2pqr BB's. They are very helpful people.

   Cheers,

   Boaz


Boaz Shaanan, Ph.D.
Dept. of Life Sciences
Ben-Gurion University of the Negev
Beer-Sheva 84105
Israel

E-mail: bshaa...@bgu.ac.il
Phone: 972-8-647-2220  Skype: boaz.shaanan
Fax:   972-8-647-2992 or 972-8-646-1710






From: CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] on behalf of Xiaoming Ren 
[xiaomingre...@gmail.com]
Sent: Thursday, April 24, 2014 10:32 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: [ccp4bb] How to create electrostatic surface of modified DNA by APBS?

Dear all:

I'm having a problem create the electrostatic surface for a DNA chain 
containing several modified nucleotides. APBS could not identify those residues 
and reported them as unassigned.

What should I do to solve this problem?

Thanks a lot and best,
Xiaoming


Re: [ccp4bb] How to create electrostatic surface of modified DNA by APBS?

2014-04-24 Thread Dyda
Hi Xiaoming,

I would download pdb2pqr 1.8 from the apbs website and install it.
(linux)
It can handle nucleic acid, (3 letter code) .
After you installed it run it with
python /whereeveritis/pdb2pqr-1.8/pdb2pqr.py -h

it will print the options.

Hope this helps.

Fred
***
Fred Dyda, Ph.D.   Phone:301-402-4496
Laboratory of Molecular BiologyFax: 301-496-0201
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