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Article ID: 161 - Last Modified: May 4, 2011

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.

As of Maestro 9.1 (Schrodinger Suite 2010) in most cases the ribbon is forced through the CA atom. An exception is beta sheets — if forced through the CA atom in beta sheets, the ribbons would appear too wavy. The overall appearance of Maestro's ribbon-fitting is similar to that of the Catmull-Rom fitting algorithm.

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

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