Macromolecular dictionary (mmCIF) version 2.0.09
_atom_site.occupancy
Name:'_atom_site.occupancy'
Definition:
The fraction of the atom type present at this site. The sum of the occupancies of all the atom types at this site may not significantly exceed 1.0 unless it is a dummy site.
Type: float
Type conditions: esd
Mandatory item: no
Alias:_atom_site_occupancy (cif_core.dic version 2.0.1)
Related item: _atom_site.occupancy_esd (associated_esd)
Enumeration default: 1.0
Category: atom_site