Re: [ccp4bb] on openning the PDB file and the mtz file by Coot

2015-03-19 Thread Steven Chou
Hi Smith, Both PDB and MTZ have records on their headers to specify the cell dimensions and space group. And for an MTZ, once the cell dimension and space group are fixed, its coordinate origins can also be fixed. For a PDB, its "CRYST1" record specifies its unit cell dimensions and space group.

Re: [ccp4bb] on openning the PDB file and the mtz file by Coot

2015-03-19 Thread luzuok
Dear Smith, Coot calculates electronic map from data columns in the mtz file. If a correct model (atomic coordinates) in a PDB file is generated from the mtz file (Model building). This mode (PDB file) will " fit " the mtz file. Yours Sincerely! Lu Zuokun -- 卢作焜 南开大学新生物站A202 在 2015-0

Re: [ccp4bb] on openning the PDB file and the mtz file by Coot

2015-03-19 Thread Carlos CONTRERAS-MARTEL
On 03/19/2015 07:20 AM, Smith Liu wrote: Suppose I have a PDB file and a mtz file (PDB file from protein A, mtz file from protein B, which is a homology protein of protein A) which are not from the same refinment (thus not fit automatically in Coot), will you please tell me what modification I

[ccp4bb] on openning the PDB file and the mtz file by Coot

2015-03-18 Thread Smith Liu
Dear All, When we by Coot open the PDB fle and the mtz file from the same refinement, the protein backbone (and the sidechains) and the electron density always fit automatically. Will you please tell me the mechanism of the Coot how the PDB file automatically fit the mtz file in its graphical