The factor is 8 * pi^2
The factor 1/3 arises when you take the trace of an anisotropic
displacement parameter. 
But I believe g_rmsf will do this conversion anyway with options -oq or
-ox (I've not tested this, just read the documentation)

Cheers
Martyn

On Wed, 2009-02-04 at 09:05 +0100, David van der Spoel wrote:
> özge kül wrote:
> > From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Alif M Latif
> > Sent: 02 May 2008 09:42
> > To: gmx-users@gromacs.org
> > Subject: [gmx-users] Plotting B-factor
> > 
> > Dear GROMACS users and developers,
> > 
> > I want to plot B-factor of a protein structure against residue. How can I 
> > do 
> > that?. Using option -oq in g_rmsf only produce bfac.pdb which is in .pdb 
> > file 
> > and assigned at each atom. Is there another way I can get the plot B-factor 
> > vs 
> > residue?. Any link to example or tutorial will be very helpful.
> > Comments and Suggestions are greatly appreciated. Thank you.
> Take the g_rmsf -res output, square it and multiply it by (IIRC) 800 
> pi^2/3 (you can do all this in xmgrace). Check the factor.
> > 
> > Muhammad Alif Mohammad Latif
> > Department of Chemistry
> > Faculty of Science
> > Universiti Putra Malaysia
> > 43400 UPM Serdang, Selangor
> > MALAYSIA
> > 
> > 
> > 
> > --- On *Wed, 2/4/09, David van der Spoel /<sp...@xray.bmc.uu.se>/* wrote:
> > 
> >     From: David van der Spoel <sp...@xray.bmc.uu.se>
> >     Subject: Re: [gmx-users] analyzing beta factor
> >     To: "Discussion list for GROMACS users" <gmx-users@gromacs.org>
> >     Date: Wednesday, February 4, 2009, 2:16 AM
> > 
> >     özge kül wrote:
> >     > Hi users,
> >     > 
> >     > I want to plot beta factor versus residue number plot at the analyzing
> >     part.I read manual and search in the web but I could not find a 
> > reasonable
> >     result for this plot.I wonder if anybody know about it.
> >     > 
> >     What is the beta factor?
> > 
> > 
> >     > Thank you,
> >     > Özge
> >     > 
> >     > 
> >     > 
> >     > 
> > ------------------------------------------------------------------------
> >     > 
> >     > _______________________________________________
> >     > gmx-users mailing list    gmx-users@gromacs.org
> >     > http://www.gromacs.org/mailman/listinfo/gmx-users
> >     > Please
> >      search the archive at http://www.gromacs.org/search before posting!
> >     > Please don't post (un)subscribe requests to the list. Use the www
> >     interface or send it to gmx-users-requ...@gromacs.org.
> >     > Can't post? Read http://www.gromacs.org/mailing_lists/users.php
> > 
> > 
> >     -- David van der Spoel, Ph.D., Professor of Biology
> >     Molec. Biophys. group, Dept. of Cell & Molec. Biol., Uppsala University.
> >     Box 596, 75124 Uppsala, Sweden. Phone:  +46184714205. Fax: +4618511755.
> >     sp...@xray.bmc.uu.se    sp...@gromacs.org   http://folding.bmc.uu.se
> >     _______________________________________________
> >     gmx-users mailing list    gmx-users@gromacs.org
> >     http://www.gromacs.org/mailman/listinfo/gmx-users
> >     Please search the archive at http://www.gromacs.org/search before 
> > posting!
> >     Please don't post (un)subscribe requests to the list. Use the www 
> > interface
> >     or send it to gmx-users-requ...@gromacs.org.
> >     Can't post? Read
> >      http://www.gromacs.org/mailing_lists/users.php
> > 
> > 
> > 
> > ------------------------------------------------------------------------
> > 
> > _______________________________________________
> > gmx-users mailing list    gmx-users@gromacs.org
> > http://www.gromacs.org/mailman/listinfo/gmx-users
> > Please search the archive at http://www.gromacs.org/search before posting!
> > Please don't post (un)subscribe requests to the list. Use the 
> > www interface or send it to gmx-users-requ...@gromacs.org.
> > Can't post? Read http://www.gromacs.org/mailing_lists/users.php
> 
> 
-- 
***********************************************************************
*                                                                     *
*               Dr. Martyn Winn                                       *
*                                                                     *
*   STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, U.K.   *
*   Tel: +44 1925 603455    E-mail: martyn.w...@stfc.ac.uk            *
*   Fax: +44 1925 603825    Skype name: martyn.winn                   * 
*             URL: http://www.ccp4.ac.uk/martyn/                      *
***********************************************************************

_______________________________________________
gmx-users mailing list    gmx-users@gromacs.org
http://www.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http://www.gromacs.org/search before posting!
Please don't post (un)subscribe requests to the list. Use the
www interface or send it to gmx-users-requ...@gromacs.org.
Can't post? Read http://www.gromacs.org/mailing_lists/users.php

Reply via email to