It is quite useful to analyze the packing between
symmetry-related molecules in the unit cell. While some
graphics programs provide a packing-analysis facility, you
may find it useful to generate
explicitly the symmetry-related molecules within
X-PLOR. The following example generates all symmetry mates
within the unit cell of the 26-10 Fab example. Note
that this example generates positions for backbone atoms only.
It would be easy to switch to a different
selection of atoms by modifying the delete statement.