Table 2.

A glossary of glycoscience terms used in this tutorial

Monosaccharide nomenclature	Glc	Glucose
	GlcNAc	2-N-acetylglucosamine
	Gal	Galactose
	GalNAc	2-N-acetylgalactosamine
	Man	Mannose
	Fuc	Fucose
	NeuAc	5-N-acetylneuraminic acid
	Sialic acid	A general term for neuraminic acids
	Hex	Hexose (e.g., Glc or Gal or Man)
	HexNAc	N-acetylhexosamine (e.g., GlcNAc or GalNAc)
	dHex	Deoxyhexose (e.g., Fuc)
Other terminologies	Reducing end	The reducing end of a glycan is the monosaccharide with a free anomeric carbon that is not involved in a glycosidic bond and is thus capable of converting to the open ring form
	Permethylation	Derivatization of all OH to O-methyl and NH to N-methyl
	Glycosidic bond	Covalent bonds associated with carbohydrates
	Cross-ring cleavage	Fragmentation across a monosaccharide ring
	Scar	A nonmethylated hydroxyl group of glycan exposed by tandem MS fragmentation of a glycosidic bond in a permethylated glycan
	β-Elimination	Release of O-glycosidic linkages between glycans and the β-hydroxyl groups of serine or threonine