Okay, thanks a lot.

Majid



________________________________
From: Justin A. Lemkul <jalem...@vt.edu>
To: Discussion list for GROMACS users <gmx-users@gromacs.org>
Sent: Sat, April 9, 2011 3:05:48 PM
Subject: Re: [gmx-users] Naming of DNA residues, and structure of .pdb file



majid hasan wrote:
> Dear All,
> 
> I am trying to make sure that the names of dna residues in my .pdb file match 
>with .rtp file in the Amber forcefield. I looked up the residuetypes.dat file 
>(attached), and it gives the names for DNA residues, which are of the form, 
>DX, 
>DX3, DX5, DXN (X=A,C,T,G). So if I have a residue X, then what is the 
>difference 
>between DX, DX3, so on i.e when do I name residue X as DX, and when as DX3, 
>and 
>so on?
> 

DX = normal residue
DX5 = 5' end
DX3 = 3' end

> Moreover, can anyone explain me the format of pdb file (attached) i.e what do 
>different columns represent, so I can change the names of residues without 
>making any error?
> 

http://www.wwpdb.org/documentation/format32/sect9.html

-Justin

> Thanks,
> Majid
> 

-- ========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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