Dear All,

I’m sure this is a really stupid question, but can you turn off the loops in a “cartoon auto” representation, to leave (visually) disconnected helices and strands?

I’ve tried “set cartoon_loop_radius, 0” which kind-of works but leaves unfortunate ghosting artefacts in the image.

Any help would be much appreciated.





Neil Ranson PhD

University Research Fellow,

Astbury Centre for Structural Molecular Biology,

School of Biochemistry & Microbiology,

University of Leeds,

Leeds, LS2 9JT. UK.


Tel: +44 (0) 113 343 7065

Fax: +44 (0) 113 343 3167