Amazing! That worked! Should create an alias for it! Best, Pranav -- Pranav Shah Postdoctoral Research Fellow. Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK On Tue, Jan 3, 2023 at 5:29 PM Elaine Meng <meng@cgl.ucsf.edu> wrote:

Hi Pranav, Happy New Year to you too! You can see our group's holiday card here: <https://www.rbvi.ucsf.edu/Outreach/card-gallery/2022-us/us.html>

As for your question: You could try displaying the alpha-carbons of the first and last residues in the sphere style. If you are showing cartoons, you'd also need to use "cartoon suppressBackbone false" to enable showing backbone atoms and cartoons at the same time.

Example: open 2gbp cartoon suppress false show /A:1,309@ca style /A:1,309@ca sphere

If the spheres aren't the size you want, you can change the VDW radii of those alpha-carbons, e.g.

size /A:1,309@ca atomRadius +0.5 <https://rbvi.ucsf.edu/chimerax/docs/user/commands/size.html>

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

...

On Jan 3, 2023, at 8:51 AM, Pranav Shah via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

Hi Team,

Happy New Year! I look forward to all new developments you guys have in store for ChimeraX in 2023. Speaking of, is it possible to somehow display the ends of a protein termini with a spheres or something? I have certain view of my model in which the termini get partially obscured so it would be nice to prominently have them displayed in some manner...

Best, Pranav -- Pranav Shah Postdoctoral Research Fellow.

Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK