c5.0 barrel (3.3 nM), 6hb (3.3 nM), 0.2% uranyl formate
CG version of one barrel displayed to left.
.. and with scales (rough calculations; tilting of barrel reduces accuracy)
c5.0 lid2 (2 nM), 6hb (0.4 nM), 0.2% uranyl formate
CG vision of possible lid to left
c5.0 barrel (10 nM), 0.7% uranyl formate