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Sorry.  You can't add link restraints to Coot (only the addition of
monomer restraints is allowed).  As Ian Tickle has already told us, Coot
is quite stupid about link restraints. The fix to this is planned but
not yet scheduled - it is non-trivial.

Paul.

On Fri, 2006-12-29 at 14:51 -0600, Richard Baxter wrote:

> 
> I need help with the correct dictionary for a thioester bond in
> Refmac/Coot. The following cif file was output by Refmac run in review
> restaints mode with the A chain of PDB ID 2B39. I tried loading it with
> "Import CIF Dictionary" in Coot but it complained the dictionary
> contained no restraints (angles, dihedrals?).

> 
> Richard
> 
> global_
> _lib_name         mon_lib
> _lib_version      4.11
> _lib_update       15/04/05
> #
> # ---   LIST OF LINKS ---
> #
> data_link_list
> loop_
> _chem_link.id
> _chem_link.comp_id_1
> _chem_link.mod_id_1
> _chem_link.group_comp_1
> _chem_link.comp_id_2
> _chem_link.mod_id_2
> _chem_link.group_comp_2
> _chem_link.name
> CYS-GLN  CYS      .        .        GLN      .        .
>  bond_CYS-SG_=_GLN-CD
> # ------------------------------------------------------
> #
> # --- DESCRIPTION OF LINKS ---
> #
> data_link_CYS-GLN
> #
> loop_
> _chem_link_bond.link_id
> _chem_link_bond.atom_1_comp_id
> _chem_link_bond.atom_id_1
> _chem_link_bond.atom_2_comp_id
> _chem_link_bond.atom_id_2
> _chem_link_bond.type
> _chem_link_bond.value_dist
> _chem_link_bond.value_dist_esd
>  CYS-GLN  1 SG      2 CD        .           1.610    0.020
> # ------------------------------------------------------
> 

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