Vol I of International Tables for X-Ray Crystallography

[Dave Love]

Beware that bugs in the CCP4 symop.lib file have been coming to light
continually.  The currently-released one has known bugs, brought to
light by an attempt at partial validation, but I can't remember
whether they concern protein SGs.

Why not get the `sginfo' program (whose author I should credit but
can't recall)?  There's a pointer to it in the crystallography WWW
virtual library.  The CCP4 library file should have been regenerated
with that technology IMHO.

-- 
Very much not speaking for CCP4.