Hi,

 In view of the recent developing discussion I have a navie question: why isn't 
the default for the selection of reflections for the Rfree in ccp4i the  "thin 
shells" option ?

      Boaz

----- Original Message -----
From: Jan Abendroth <[EMAIL PROTECTED]>
Date: Friday, December 29, 2006 22:51
Subject: Re: [ccp4bb]: Retraction of ABC transporter structures - were 
therewarning signs?
To: Dean Madden <[EMAIL PROTECTED]>
Cc: [email protected]

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> 
> > A way to avoid biasing Rfree values is to choose the test set 
> in thin 
> > resolution shells whenever NCS is present. Currently, this 
> precaution 
> > is often ignored. It should become a de facto standard for 
> publication 
> > of structures containing NCS.
> >
> >
> Hi all,
> btw - it would be fantastic and certainly would encourage us to 
> use it 
> more often if the assignment of free reflections in resolution 
> shells 
> was incorporated in a ccp4 program. Yes, one can for instance go 
> through 
> shelxpro, however if one wants to go back to ccp4 this route is 
> a bit 
> painful.
> 
> Cheers
> Jan
> 
> -- 
> Jan Abendroth
> University of Washington
> Institute of Biochemistry
> 1959 NE Pacific Street, K-426
> Box 357742
> Seattle, WA-98195
> phone: +1-206-616-4510
> fax:   +1-206-685-7002
> 
> 

Boaz Shaanan, Ph.D.
Associate Professor
Dept. of Life Sciences
Ben-Gurion University of the Negev
Beer-Sheva 84105
Israel
Phone: 972-8-647-2220 ; Fax: 646-1710
Skype: boaz.shaanan‎

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