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Article ID: 161 - Last Modified:

What ribbon-fitting algorithm does Maestro use, and in what cases does the ribbon position track that of CA atoms?

Maestro uses a custom spline-based fitting algorithm with control points based on the position of backbone atoms. By default ribbons are smoothed so that they do not necessarily pass through the alpha carbons, especially for beta sheets — if forced through the CA atom, the ribbons would appear too wavy. The overall appearance of Maestro's ribbon-fitting is similar to that of the Catmull-Rom fitting algorithm.

As of the 2015-3 release, you can set a preference for forcing strands (ribbons) through the alpha carbon atoms, rather than smoothing them.

Keywords: Maestro, ribbons, catmull-rom, catmull, ribbon fitting, beta sheets, CA atom

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