278
Carbohydrate Antigens
Keywords
Monosaccharide
The most basic carbohydrate molecule that cannot be divided into simpler sugars
by hydrolysis.
Oligosaccharide
A linear or branched chain composed of a small number of monosaccharides (2 to 10
or 20) that can be broken down into simpler sugars via hydrolysis.
Polysaccharide
A polymer composed of a large number of monosaccharides, at least more than 10 to
20, and usually many hundreds or thousands of monosaccharide units arranged in
repeated structures.
Glycoconjugate
A molecule in which an oligosaccharide is covalently linked to a protein or a lipid,
forming either a glycoprotein or a glycolipid, respectively.
Glycan
Equivalent to polysaccharide but usually refers to the sugar chains of glycoconjugates.
Glycosaminoglycan
A heteropolysaccharide chain usually composed of a hexosamine and glucuronic acid
as seen in proteoglycan.
Glycoprotein
A molecule in which an oligosaccharide is covalently linked to a protein.
Proteoglycan
A subclass of glycoproteins with large heteroglycan chains usually composed of a
hexosamine and glucuronic acid.
Glycolipid
A molecule in which an oligosaccharide is covalently linked to a lipid.
Glycosphingolipid
A subclass of glycolipid in which an oligosaccharide is covalently linked to the lipid
sphinganine.
Lectin
A carbohydrate binding protein or glycoprotein of nonimmune origin that binds
noncovalently to carbohydrates with speciFcity and selectivity.
previous page 952 Encyclopedia of Molecular Cell Biology and Molecular Medicine read online next page 954 Encyclopedia of Molecular Cell Biology and Molecular Medicine read online Home Toggle text on/off