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Hi,

Well, I guess one shouldn't change versions of refmac in the middle  
of a structure refinement.  What are the major differences between . 
0034 and .0066 ?  I noted that form factors for the Se atom have  
changed dramatically even though I'm using the same " anom formfactor  
SE -8.13 5.05 " command.  Is this because the program is now using  
the wavelength on the .MTZ file ?

with .0034:

  SE     8.8706   2.4098   5.8196   0.2726   3.9731  15.2372    
4.3543  43.8163   2.8409

with .0066:

  SE     8.8706   2.4098   5.8196   0.2726   3.9731  15.2372    
4.3543  43.8163   2.8409

The other major difference is that explicit weight that I was using =  
0.25 is weighting the geometry much more in .0066 compared with . 
0034.  Also the refinement is not as well behaved as it was in 0.0034.

What has really changed?

Mark

_________________________________
Mark A. Saper, Ph.D.				
Associate Professor, Biophysics and Department of Biological Chemistry
University of Michigan
3040 Chemistry Building
930 N University Ave
Ann Arbor MI  48109-1055

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