Data items in the STRUCT_NCS_ENS category record information
about ensembles of domains related by noncrystallographic
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.
Example 1 - based on laboratory records for the collagen-like
; The ensemble represents the pseudo-twofold symmetry
between domains d1 and d2.
Key Category Items
Items in Category struct_ncs_ens