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 2015-03-19 14:20:37,"Smith Liu" <smith_liu...@163.com> 写道: 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 window? 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 should make on the files in order to have the Coot to fit the protein bakbone (and the sidechains) and the electron density? I am looking forward to getting your reply. Smith