XmlmmCIF equivalent: struct_ncs_ens Data items in the STRUCT_NCS_ENS category record information about ensembles of domains related by non-crystallographic symmetry. The point group of the ensemble when taken as a whole may be specified, as well as any special aspects of the ensemble that require description. XmlmmCIF equivalent: struct_ncs_ens/details A description of special aspects of the ensemble. XmlmmCIF equivalent: struct_ncs_ens/point_group The point group of the ensemble of structural elements related by one or more non-crystallographic symmetry operations. The relationships need not be precise; this data item is intended to give a rough description of the non-crystallographic symmetry relationships. XmlmmCIF equivalent: struct_ncs_ens/id The value of _struct_ncs_ens.id must uniquely identify a record in the STRUCT_NCS_ENS list. Note that this item need not be a number; it can be any unique identifier.