In addition to the other suggestions, I would recommend looking at Dr. Merritt's webpage on anomalous scattering for a clear graphical explanation of the anomalous difference Fourier map:
http://skuld.bmsc.washington.edu/scatter/AS_Bijvoet.html On Fri, Aug 29, 2014 at 2:43 PM, Alexander Aleshin < [email protected]> 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
