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Re: [ccp4bb]: Sharpening data



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Steve Soisson wrote:
> 
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> 
> Dear all,
> 
> I am interested in "sharpening" my reflection data by applying an
> artificial temperature factor (eg. -70 A**2).  This seems non-trivial,
> as I am not sure what do with the sigmas.  Before you all think I'm
> nuts, others have done this in low resolution structures with favorable
> results, such as:
> 
> Borhani, et al.  (Apolipoprotein A-I)  PNAS 94:12291-12296.
> 
> Stehle, et al.  (Simian virus 40) Structure 4:165-182.
> 
> Unfortunately, these papers were not so informative as to HOW they
> actually did this.
> 
> Does anyone have an idea of a program to use that will do this sort of
> modification?
> 
> Thanks very much in advance-
> 
> Steve Soisson


 There is a mod to cad now to apply both scale and temperature factor 
--  to the Fs and Sigmas in the file
eleanor dodson
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Eleanor J.Dodson, Chemistry Department, University of York, U.K.
Tel: Home +44 (1904) 42 44 49, work:  +44 (1904) 43 25 65
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