Dear Murugan, you can use the program hkl2map from Thomas Schneider, available at http://webapps.embl-hamburg.de/hkl2map/ It's a graphical interface to the programs shelx c/d/e which are available from http://shelx.uni-ac.gwdg.de/SHELX/index.html
With SAD data you want to look at the d"/sigma line at the end of the shelxc output. Where that drops below about 1.3 is approximately where your anomalous signal ends. You might get slightly improved statistics with xprep instead of shelxc, but xprep is not free and you have to get a copy from Bruker-AXS. Tim On Tue, Jun 29, 2010 at 02:35:29PM +0530, Vandu Murugan wrote: > Dear all, > I have collected a 2.7 angstrom home source data with Cu-Kalpha source > for a protein with 6 cysteines, with a multiplicity of around 23. I need to > know, is there any significant anamolous signal present in the data set, > since there is no good model for my protein. Can any one tell, which > program to run, and what parameter to see? Thanks in advance. > > cheers, > Murugan -- -- Tim Gruene Institut fuer anorganische Chemie Tammannstr. 4 D-37077 Goettingen GPG Key ID = A46BEE1A
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