I think the answer is in this paper:
LOW-RESOLUTION ELECTRON-DENSITY AND ANOMALOUS-SCATTERING-DENSITY MAPS OF CHROMATIUM HIGH-POTENTIAL IRON PROTEIN
By: STRAHS, G; KRAUT, J
JOURNAL OF MOLECULAR BIOLOGY Volume: 35 Issue: 3 Pages: 503-& Published:
1968
On Fri, 29 Aug 2014, Alexander Aleshin wrote:
Could anyone remind me how to calculate anomalous difference Fourier maps
using model-calculated phases? I was doing it by
(1) calculating PHcalc from a pdb file using Sfall, then
(2) merging PHcalc with Dano of experimental SFs, then
(3) calculating a map with Dano and PHcalc using FFT program of CCP4.
Now, I've read Z. Dauter's et all paper
http://mcl1.ncifcrf.gov/dauter_pubs/175.pdf, and it said that their anomalous
maps were calculated using (delF, PHcalc-90degrees). Why did they use -90
degrees? How does it relay to a (delF, phcalc) map?
Thank you for an advice.
Alex Aleshin
