The essential entities described in the resources of Glycomics@ExPASy. One of the main purposes of Glycomics@ExPASy is the integration of the tools in the collection shown in Fig. 1. To that end, GlyConnect is used as a dashboard for using in-house and cross-referenced resources. It is designed to ease navigation between entities named in red: protein, peptide, site, glycan, composition and ligand. A protein, a glycan composition or a glycan structure (through its structural properties) is an entry point in the database. Then structures, peptides and sites can be listed and compared and possible correlations brought out.