Re: [ccp4bb] Refmac twin refinement and the output map

2010-12-15 Thread Garib N Murshudov
Dear Yu I cannot say about other programs. refmac uses equation in slides No 13-14 of the presentation: http://www.ysbl.york.ac.uk/refmac/Presentations/ Refmac_Erice_workshop.ppt If your crystal is a perfect twin and you have processed data in true space group then refmac will give map for a s

[ccp4bb] Refmac twin refinement and the output map

2010-12-15 Thread zhang yu
Dear all, I have a question about twin refinement of Refmac in CPP4. I was told that the refmac (Phenix also?) will generate the detwined map after the refinement with twin. My question is that If my crystal is a perfect hemihedral twin, how can the refmac make a detwined map after the refinement?