[PyMOL] r, theta, and phi of a helix

[Chen, Q. <qi...@pi...>]

Hi, Pymol Users,

How can I extract the orientation of the helix region of a protein?

For example, I have a pentameric membrane protein, I would like to know the orientation angle of one helix region relative to the pentameric symmetry axis (Z)?

I found there is a script to calculate the angle between two helical regions.

Thanks!

Charles