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Item _chem_comp_atom.model_Cartn_x

Description

              The x component of the coordinates for this atom in this
               component specified as orthogonal angstroms. The choice of
               reference axis frame for the coordinates is arbitrary.

               The set of coordinates input for the entity here is intended to
               correspond to the atomic model used to generate restraints for
               structure refinement, not to atom sites in the ATOM_SITE
               list.