Dear all,
I used the command sel @N1 @N3 to select the N1 and N3 atoms of a
nucleic acid structure (like 1bna).
when I do "show only" in Actions / Atoms&Bonds, a specific
representation is displayed as in the image below: sticks connect N1
atoms of one strand and N3 atoms of the other strand.
May you tell me the meaning of this representation and how can I
modify it (I mean, how to change the type of atoms to be connected)?
In fact, I would like to visually apprehend the helical axis. Is
there a way to calculate and display this axis in Chimera?
Many thanks for your help
Damien
