[chimerax-users] Ca trace

[Elaine Meng]

Hi Valeria,
If you mean straight lines between CA atoms, sorry no, there is no CA trace display in ChimeraX yet.  It is #694 in our ticket database.

You can show a spaghetti-type ribbon that goes through the exact CA positions but is curved in between, e.g.

cartoon
cartoon style arrows f xsect oval width 1 thick 1

as shown for the purple protein in rightmost image here:
<http://www.cgl.ucsf.edu/home/meng/chimerax/docs/user/commands/cartoon.html#subcommands>

In that case you could use different width and thickness values.  If you want to additionally show CA balls, maybe something like:

cartoon suppressBackbone false
cartoon style arrows f xsect oval width .5 thick .5
show @ca
style @ca ball

… as shown in attached image. I hope this helps,
Elaine
-----
Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco



> On Sep 18, 2018, at 9:09 PM, v.kalienkova at bioc.uzh.ch wrote:
> 
> Dear all,
> I was wondering, is there an option to just show a Ca trace in ChimeraX?
> If yes, can one modify the width of it?
> Thanks a lot in advance,
> Valeria

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