From: George Madalin Giambasu (giambasu_at_gmail.com)
Date: Mon May 14 2007 - 15:40:29 CDT

Here is what I use:

      for phosphates: (name P or name O1P or name O2P)"]
      for sugar: ( name C5' or name O5' or name C4' or name O4' or name C1'
or name C2' or name O2' or name C3' or name O3') "]
      for nucleobase: not (name P or name O1P or name O2P or name C5' or
name O5' or name C4' or name O4' or name C1' or name C2' or name O2' or name
C3' or name O3') and noh"]

I hope this helps,

George

On 5/14/07, Adrian Roitberg <roitberg_at_qtp.ufl.edu> wrote:
>
> Dear all,
>
> Does anyone know what is the selection command for the base part of a
> nucleic acid ?
> I do not need the sugar, nor the backbone, just the rings.
>
> Thanks !!!
>
>
> --
> Dr. Adrian E. Roitberg
> Associate Professor
> Quantum Theory Project and Department of Chemistry
>
> University of Florida PHONE 352 392-6972
> P.O. Box 118435 FAX 352 392-8722
> Gainesville, FL 32611-8435 Email adrian_at_qtp.ufl.edu
>
> ============================================================================
>
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> -- Theodore Roosevelt
>