On 17/03/11 14:37, Garib N Murshudov wrote:


First, Coot uses the "old-style" filenames - i.e. the .cif files [1] are in lettered subdirectories, not all files in one directory (straightforward for me to fix if you mean to keep the new naming style).



They are not in one directory. The structure is the same as it was before.

Can you try the version 5.6.25:
http://www.ysbl.york.ac.uk/refmac/data/refmac_experimental/refmac_dictionary_v5.25.tar.gz <http://www.ysbl.york.ac.uk/refmac/data/refmac_experimental/refmac_dictionary_v5.25.tar.gz>

One version was corrupted. Perhaps you took that version (or I pointed out to that version)

Ah, that would be it, I guess.


Secondly (and more importantly), the PDB version 3.x has a " H " hydrogen atom on the peptide N - so did the old-style dictionary. The new Refmac dictionary does not (it does have HN1 and HN2 - presumably non-polymer) - hence we still get flying hydrogens - different ones :-/.


No. It is not. Here is an example (ALA):

loop_
_chem_comp_atom.comp_id
_chem_comp_atom.atom_id
_chem_comp_atom.type_symbol
_chem_comp_atom.type_energy
_chem_comp_atom.partial_charge
 ALA           N      N    NH1      -0.204
 ALA           H      H    HNH1      0.204
 ALA           CA     C    CH1       0.058
 ALA           HA     H    HCH1      0.046
 ALA           CB     C    CH3      -0.120
 ALA           HB1    H    HCH3      0.040
 ALA           HB2    H    HCH3      0.040
 ALA           HB3    H    HCH3      0.040
 ALA           C      C    C         0.318
 ALA           O      O    O        -0.422



That looks better, and not what I was looking at :)

Paul.

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