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Date: Sun, 6 Feb 2000 18:09:53 -0500 (EST)
From: Iraj Daizadeh <daizadeh@fas.harvard.edu>
To: pdb-l@rcsb.org
cc: chemistry@ccl.net
Subject: finding water in cavities.
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Gert Vriend from the embl had a very good point.

The question should be:


What programs are currently available determine ``where waters sit in
macromolecules, or, if there are no waters in the PDB file, finding the
cavities that are large enough to hold [water].''


Any thoughts? Programs or advice on this question would be appreciated.

Iraj.


Iraj Daizadeh, Ph.D.
Harvard University
Department of Cellular and Molecular Biology
The Biological Laboratories, Box #140
16 Divinity Avenue
Cambridge, MA 02138
Phone:   (617) 495-0783
         (617) 495-0560
Fax:     (617) 496-4313
Email:   daizadeh@fas.harvard.edu
WebPage: http://mcb.harvard.edu/gilbert/daizadeh


From chemistry-request@server.ccl.net  Sun Feb  6 19:37:31 2000
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Date: Sun, 6 Feb 2000 18:30:15 -0500
From: Dan Strahs <strahs@efriedman.biomath.nyu.edu>
To: Iraj Daizadeh <daizadeh@fas.harvard.edu>
cc: Mihaly Mezei <mezei@Inka.MSSM.EDU>, pdb-l@rcsb.org, chemistry@ccl.net
Subject: Re: CCL:finding water in cavities.
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I suggest the following reference on the uses of GCMC:

	Guarnieri, F., and Mezei, M. (1996) Simulated Annealing of the
Chemical Potential: A General Procedure for Locating Bound Waters.
Application to the Study of the Differential Hydration Propensities of the
Major and Minor Groove of DNA. J. Am. Chem. Soc., 118:8493-8494

	The method has also been applied to proteins (notably BPTI, to
analytically determine the 4 known internal waters). I'm not clear if they
published this study, though. 

	You can contact Mihaly Mezei @ mezei@Inka.MSSM.EDU.

						Dan Strahs

On Sun, 6 Feb 2000, Iraj Daizadeh wrote:

> 
> 
> Gert Vriend from the embl had a very good point.
> 
> The question should be:
> 
> 
> What programs are currently available determine ``where waters sit in
> macromolecules, or, if there are no waters in the PDB file, finding the
> cavities that are large enough to hold [water].''
> 
> 
> Any thoughts? Programs or advice on this question would be appreciated.
> 
> Iraj.
> 
> 
> Iraj Daizadeh, Ph.D.
> Harvard University
> Department of Cellular and Molecular Biology
> The Biological Laboratories, Box #140
> 16 Divinity Avenue
> Cambridge, MA 02138
> Phone:   (617) 495-0783
>          (617) 495-0560
> Fax:     (617) 496-4313
> Email:   daizadeh@fas.harvard.edu
> WebPage: http://mcb.harvard.edu/gilbert/daizadeh
> 
> 
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