Cartoon cylindrical helices

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The cartoon_cylindrical_helices setting makes cartoon helices appear as simple cylinders.

Changed in PyMOL 2.5: Cylinders are not straight anymore but follow the actual curved shape of a helix. Straight helices are still available as mode 2.


  • 0: Off (helices will be rendered according to the cartoon property or settings like cartoon_fancy_helices)
  • 1: Curved helices (since PyMOL 2.5)
  • 2: Straight helices


fetch 1bb1
set cartoon_cylindrical_helices, 1
as cartoon
set cartoon_cylindrical_helices, 1 set cartoon_cylindrical_helices, 2
Cartoon cylindrical helices-1.png Cartoon cylindrical helices-2.png

Related Settings

See Also