[ccp4bb]: REVISE/ECALC//RANTAN/FFT

[naismith@st-andrews.ac.uk]

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Dear All,
	We have stumbled upon a difficult MAD solution (or non solution as yet).
We are experimenting with RANTAN. Can I check the the FM_RE calculated 
by REVISE is converted to EM_RE by ECALC which is on its own fed to 
RANTAN.

To find heavy atom sites, one then calculates a map using
F1=EM_RE PHI=PHIbest_rantan and peaksearches it.

What I am unsure of is the EM_RE quantity, although derived from anomalous
diffs, it is entered into FFT as F not DANO.

While I am on, does anyone have any thoughts or advice about what to play 
with RANTAN and what constitutes something to get encouraged by?

best
Jim

James H. Naismith                | Research mailto:naismith@st-and.ac.uk
Centre for Biomolecular Sciences | Teaching mailto:jhn@st-and.ac.uk
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