There are tools out there that calculate such a map.
REVISE is one - I guess i is in the list of CCP4 programs.

i often do both maps independently and look at them for common peaks
The trouble is that dispersive differences are often less reliable than the anomalous ones..

Eleanor




07/06/2011 06:36 PM, Jacob Keller wrote:
That would be an approximation of the map



it seo both maps indeprndently and look at them for common peaks. ems you actually want,
which would use the F_A amplitude terms from MAD analysis together
with your current model phases rather than the MAD phase estimates.
You could, for example, use CAD to merge the FA column output by
hkl2map with the phases from your current model.

So I take it that the F_A term from MAD incorporates both anomalous (I
guess including both f' and f") and dispersive differences?

JPK


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Jacob Pearson Keller
Northwestern University
Medical Scientist Training Program
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