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[ccp4bb]: density map



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I have a set of reflections and their corresponding structure factor
amplitudes and phases. Is CCP4 or any of its modules (eg. fft) able to
create a density map for this given set? Or can it translate the set of
phases to coordinates?


 You can calculate a map from structure factors and phases.

 Within CCP4 you need to convert the reflection list into an mtz file
( Look at reflection utilities in the GUI - it sets up the job for you)

Then you run fft to do a Fourier transform of those amplitudes into
electron density.

( again look at map utilities in the GUI)

 Interpreting the map to place like coordinates for the model is another
Q. The methods you would use depend on the resolution of the data ( a 3A
map must be treated differently from a 1A one) and the accuracy of your
phases.

 Eleanor