UCSF ChimeraX Home Page
UCSF ChimeraX is a powerful molecular visualization and analysis software. It allows users to build, view, and analyze complex 3D molecular structures, aiding in research and education within the bioinformatics field.
En bref
Ajouté le
17 mars 2026
Matière et domaine
computer-science-advanced · bioinformatics
Niveaux scolaires
9e année (3e)–12e année (Terminale)
Tarif
Free
Type de page
Service
Introduction
UCSF ChimeraX Cartoon Ribbon Rendering
- Ribbon Geometry: Cartoon ribbons pass through the exact α-carbon positions for helices and coils, but are smoothed by default for β-strands.
- Smoothing Mechanics: β-strand smoothing can be adjusted on a continuous scale from 0 (off) to 1.0 (fully on).
- Tethering: When sidechains are displayed, a tether is automatically drawn to connect them to the ribbon if they are detached; tether appearance is customizable.
- Granular Control: Smoothing adjustments can be applied globally or to specific residues.
- Command Syntax: The
cartooncommand (e.g.,cartoon :139,164 smooth 0) allows for precise, residue-specific control over ribbon smoothing without affecting the rest of the structure. - Example Case: Mandelate racemase (PDB 2mnr) is used as a reference to demonstrate the visual difference between smoothed and unsmoothed ribbon positions.
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