Re: [ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-18 Thread Wim Burmeister
Hello, thank you very much for the different answers. In order to close the discussion, the solution is to expand first the I213 asymmetric unit to a full I213 unit cell contents (24 asu, 12 from the rotational symmetry and 12 from the body-centering) using pdbse

Re: [ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-17 Thread Phil Evans
If you can transform the coordinates correctly, then Pointless can transform the data to match, using the coordinates as reference pointless < On 17 May 2018, at 12:39, Eleanor Dodson > <176a9d5ebad7-dmarc-requ...@jiscmail.ac.uk> wrote: > > Yes - here is a bit of the output from reindexing

Re: [ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-17 Thread Eleanor Dodson
Yes - here is a bit of the output from reindexing a set of H32 data to C2 It tells you this and issues some warnings! You are changing the symmetry of merged data are you SURE you know what you are doing $TEXT:Warning: $$ comment $$ WARNING: ** Symmetry change of merged data

Re: [ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-15 Thread Kay Diederichs
Hi Wim, I would use pdbset and the I213 symops to generate 23 copies of the ASU contents, and append them to the existing I213 PDB file. The resulting P1 PDB file has the same cell constants as the I213 one. But that's probably not what you want? Kay On Tue, 15 May 2018 10:51:15 +0200, Wim Bu

Re: [ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-15 Thread Eleanor Dodson
Well - if you use reindex to change the reflections from I213 to P1 the log file gives the rotation matrix need to convert I213 coordinates using the same convention. There are various clever inputs to reindex which allow you to do this Then you can use pdbset xyzin I213.pdb xyzout P1.pdb givin

[ccp4bb] Script / matrix for coordinate transformation from a cubic I cell to its primitive P cell ?

2018-05-15 Thread Wim Burmeister
Hello, does anybody have a script which transforms the pdb file of a structure in I-centred I213 into a pdb file based on the corresponding primitive P1 unit cell ? A rotation matrix would also do  which uses the matrix of the transformation from one coordinate system