This extension provides a visual model for glycans corresponding to the 3D Symbol Nomenclature for Glycans (SNFG).

To apply this visual model, press Ctrl+Shift+V or go to the Visualization menu > Visualize > Visual model. Then, in the pop-up dialog, choose “Glycans” from the list.

Glycans are detected based on their standard names and some standard groups that they contain.

The Glycans Visual Model has a number of options. To modify them, select the visual model in the Document View and open the Inspector (Ctrl+2 or Interface menu > Inspector). Representation mode: Shapes (3D SNFG) or Rings (filled rings). Shape radius: modify the size of 3D SNFG shapes. Glycan bond radius: modify the radius of connections between the saccharides in the glycan.

Via this visual model, you can also select saccharides by clicking on the shapes/rings. For that, switch the Selection filter (top-left corner of the Viewport) to Structural groups and click on a shape/ring to select the associated saccharide.

The 3D shapes are positioned and oriented based on the rings.

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