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:
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
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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@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