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Protein Data Bank exchange dictionary (pdbx) version 1.0521
_chem_comp_tor.atom_id_3
Name:'_chem_comp_tor.atom_id_3'
Definition:
The ID of the third of the four atoms that define the torsion angle. This data item is a pointer to _chem_comp_atom.atom_id in the CHEM_COMP_ATOM category.
Mandatory item: yes