XmlmmCIF equivalent: struct_ncs_ens_gen Data items in the STRUCT_NCS_ENS_GEN category list domains related by a non-crystallographic symmetry operation and identify the operator. XmlmmCIF equivalent: struct_ncs_ens_gen/ens_id This data item is a pointer to _struct_ncs_ens.id in the STRUCT_NCS_ENS category. XmlmmCIF equivalent: struct_ncs_ens_gen/dom_id_1 The identifier for the domain that will remain unchanged by the transformation operator. This data item is a pointer to _struct_ncs_dom.id in the STRUCT_NCS_DOM category. XmlmmCIF equivalent: struct_ncs_ens_gen/dom_id_2 The identifier for the domain that will be transformed by application of the transformation operator. This data item is a pointer to _struct_ncs_dom.id in the STRUCT_NCS_DOM category. XmlmmCIF equivalent: struct_ncs_ens_gen/oper_id This data item is a pointer to _struct_ncs_oper.id in the STRUCT_NCS_OPER category.