For the helix crossing angles the following naming conventions have 
been used.

From simulation of hub+linker+regulatory_segment, angle between
axes of aC helices of subunits A and C are named: 
dodecamer_AC_helix_crossing.out

From simulation of hub alone, where angle between
axes of aC helices of subunits A and C are named: 
dodecamer_hub__AC_helix_crossing.out
