loop_
    _pdbx_virtual_torsion.atom_site_id_1
    _pdbx_virtual_torsion.atom_site_id_2
    _pdbx_virtual_torsion.atom_site_id_3
    _pdbx_virtual_torsion.atom_site_id_4
    _pdbx_virtual_torsion.model_id
    _pdbx_virtual_torsion.value
    _pdbx_virtual_torsion.site_symmetry_1
    _pdbx_virtual_torsion.site_symmetry_2
    _pdbx_virtual_torsion.site_symmetry_3
    _pdbx_virtual_torsion.site_symmetry_4
     1  2   5    9  1    71.8  1_555 1_555 1_555 1_555
      







