If there is such a quirk then it's not one we know about. We would definitely appreciate being sent whatever is needed to reproduce the behaviour.
Dimers in orthorhombic space groups can lead to translational NCS, which is handled much better in the latest versions of Phaser. Is it possible Phaser was updated between the two attempts? Best wishes Randy Read On 9 Jul 2012, at 21:17, David Schuller <dj...@cornell.edu> wrote: > Scaling should be the same in P222 vs. P212121. The only difference is the > exclusion of systematic absences. You may have run into some quirk of Phaser > in the way it handles multiple space groups vs. a single one. > > > On 07/09/12 14:06, Shya Biswas wrote: >> Hi all, >> >> I have a dataset that I scaled in p212121 with cell dimension a=28.9 b=67.1 >> and c=93.5 however I do not get a right MR solution with this. So I went >> back and scaled it in p222 space group and asked phaser to find the right >> spacegroup solution for it, this time phaser gave me the right solution and >> in p212121 space group. By right solution I mean the molecule is a dimer and >> has to be oriented in a particular way, which I get only when I use p222 >> scaled data. I am puzzled and would like to know if anyone can explain this. >> >> thanks, >> Shya > > > -- > ======================================================================= > All Things Serve the Beam > ======================================================================= > David J. Schuller > modern man in a post-modern world > MacCHESS, Cornell University > schul...@cornell.edu
