Re: [ccp4bb] {developers] SG 18 problem cif2mtz legacy issue

2021-01-06 Thread Bernhard Rupp
Thanks Fellows, > I agree with Marcin that his GEMMI program is the way to go. It does > everything you need and Marcin is very quick to respond to any issues. Yes, found it also in the windows distribution will try > From your description the axes in the SG symbol have been permuted

Re: [ccp4bb] {developers] SG 18 problem cif2mtz legacy issue

2021-01-06 Thread Ian Tickle
Hi Bernhard I gave up trying to use CIF2MTZ in the STARANISO server over a year ago. I agree with Marcin that his GEMMI program is the way to go. It does everything you need and Marcin is very quick to respond to any issues. The problem is that there are alternate settings in the PDB so the so

Re: [ccp4bb] {developers] SG 18 problem cif2mtz legacy issue

2021-01-06 Thread Marcin Wojdyr
Dear Bernhard, CCP4 has an alternative command-line tool for this; less tested but happens to preserve P 21 2 21: gemmi cif2mtz input.cif output.mtz Marcin On Wed, 6 Jan 2021 at 20:39, Bernhard Rupp wrote: > > Dear Developers, > > > > running cif2mtz in ccp4i (or from the console) in the case o

[ccp4bb] {developers] SG 18 problem cif2mtz legacy issue

2021-01-06 Thread Bernhard Rupp
Dear Developers, running cif2mtz in ccp4i (or from the console) in the case of non-standard settings of space group 18 (which should be discouraged, to phrase it mildly) on the mmcif from the PDB _symmetry.space_group_name_H-M "P 21 2 21" <-- _symmetry.Int_Tables_number 18 # le

[ccp4bb] Call open for BAG beamtime at DESY beamline P11, PETRA III

2021-01-06 Thread Hakanpää , Johanna
Dear all, Please note the approaching deadline for submission of Block Allocation Group (BAG) proposals for DESY beamline P11 at the PETRA III synchrotron in Hamburg. Proposals are to be submitted via https://door.desy.de The deadline for submission is ---

Re: [ccp4bb] possible solution with Phaser

2021-01-06 Thread Eleanor Dodson
First - test other spacegroups - your solutions have lots of 60 degree angles - and the space group is hexagonal - there can be confusion between cryst symmetry and homo-dimer symmetries. If you go back to the data processing and read the pointless output carefully for point group clues- Qs to che

Re: [ccp4bb] possible solution with Phaser

2021-01-06 Thread Randy John Read
Dear Luca, I think all of those orientations are symmetry-related copies of the same orientation. This would imply that there is tNCS, but it doesn’t look like Phaser is applying tNCS. The second and fourth molecules are in the same orientation, but differing by 1/6 of the a-axis cell transla

Re: [ccp4bb] possible solution with Phaser

2021-01-06 Thread Marc Graille
Dear Luca, few possibilities: 1) Consider that you may have only 3 monomers in the asymmetric unit and not 4 as suggested from Matthew’s coefficient. Which are the R and Rfree values if you refine this model with only 3 molecules? 2) When you look at the crystal packing on the correctly placed