Roles of glycosylation in the biology of enveloped viruses. The cartoon depicts functions of glycosylation described in the literature to affect various stages of the infectious cycle of enveloped viruses (Table I). The glycan chains presented on the generic viral particles are of illustrative manner and do not represent the glycoprofiles of individual viruses. Likewise, the glycan structures shown to interact with specific glycan binding molecules represent the most likely type of structure (high mannose or complex type) based on known carbohydrate binding specificities, unless specified otherwise in individual studies defining the interactions or glycoprofiling/glycoproteomic studies of the viruses in question. In the bottom right panel, the viruses are grouped according to the predominant mode of exit within the individual families. Virus abbreviations as in Table I. Monosaccharide symbols follow the SNFG (Symbol Nomenclature for Glycans) system (PMID 26,543,186, Glycobiology 25: 1323–1324, 2015).