Dear Dr. Elaine

Thanks for your help. I am able to draw the symmetry axis, and can you let me know how can I change the representation of the drawn vector, its color and diameter. and If I make another copy of the same vector how can I move the second vector to a particular axis a by given rotation angle.

Sincerely

Jiri

On Mon, Nov 21, 2016 at 6:48 PM, Elaine Meng <meng@cgl.ucsf.edu> wrote:

Hi Jiri,
As I understand it, you would need to open two separate copies of the structure, superimpose the two sets of atoms for which you want to see the axis (like A to B, or domain 1 of A to domain 2 of A), and then use command “measure rotation”.
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/measure.html#rotation>

There are various different ways to superimpose sets of atoms as discussed here:
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/superposition.html>

I hope this helps,
Elaine
----------
Elaine C. Meng, Ph.D.
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Nov 20, 2016, at 2:30 PM, chemocev marker <jirivitali@gmail.com> wrote:
>
> Hi All
> I am interested to measure the symmetry axis of individual sub-unit (chain A & chain B) along with the symmetry axis of the heterodimer (AB). Each chain has 2 domains and 2 fold rotations axis, and I can measure by removing 1 chain and measure for the other. Is there way to measure the inter-domain symmetry axis of the heterodimer molecule.
> best
> Jiri