Re: [Chimera-users] How to determine the distance from SG of Cys to the centroid of a nearby Trp ring

Thanks Elaine. ________________________________________ From: Elaine Meng [meng@cgl.ucsf.edu] Sent: Monday, September 16, 2013 1:20 PM To: Pande, Ajay K Cc: chimera-users@cgl.ucsf.edu List Subject: Re: [Chimera-users] How to determine the distance from SG of Cys to the centroid of a nearby Trp ring Hi Ajay, Unfortunately there isn't any way to draw a line between a centroid and an atom. Instead you would need to add an atom at the centroid position, then measure atom-atom distance (which is shown as a line). You can add an atom at specified coordinates using Build Structure (in menu under Tools… Structure Editing), Start Structure section. <http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/editing/editing.html#start> Centroid coordinates are reported in the Reply Log (under Favorites in menu) when the centroid is created, and can be written to a file using the Save button on the Axes/Planes/Centroids dialog. Best 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 Sep 16, 2013, at 6:44 AM, "Pande, Ajay K" <apande@albany.edu> wrote:

Thanks Elaine,

All that worked- thanks. Now, how do I show the line connecting the centroid to an atom (i.e.D1), which would also show its length in Angstroms?

Thanks

Ajay