Table Of Contents

Glycan Composition Classes

GlycReSoft treats glycan compositions as N-glycans, O-glycans, or GAG-linkers based upon user assertion. These do not directly impact their use in glycan database searches, but they are required for glycopeptide database construction.

Class Names

When referred to in text, these are the expected names for these classes. They are parsed case-insensitively.

  • N-glycan: N-linked glycans. Assumed to have a chitobiose core.

  • O-glycan: O-linked glycans. The default assumption is mucin-type O-glycan but not strictly required.

  • GAG-linker: Glycosaminoglycan linker saccharide. Assumed to contain the core trisaccharide.