![]() The prefix “glyco” and the suffixes “saccharide” and “glycan” indicate the presence of carbohydrate constituents (e.g., glycoproteins, glycolipids, and proteoglycans). The term “glycoconjugate” is often used to describe a macromolecule that contains monosaccharides covalently linked to proteins or lipids. ![]() Thus, the relationship of monosaccharides to oligosaccharides or polysaccharides is analogous to that of amino acids and proteins or nucleotides and nucleic acids (polynucleotides). The term “polysaccharide” is typically used to denote any linear or branched polymer consisting of monosaccharide residues, such as cellulose ( Chapters 14 and 24). Typically, the term “oligosaccharide” refers to any glycan that contains less than 20 monosaccharide residues connected by glycosidic linkages. Monosaccharides are joined together to give rise to oligosaccharides or polysaccharides. Monosaccharides are the simplest of these polyhydroxylated carbonyl compounds (saccharide is derived from the Greek word for sugar or sweetness). X(H 2O) n that also possess a carbonyl group, either an aldehyde or a ketone. In the 19th century, sugar-based substances were referred to as carbohydrates, or “hydrates of carbon,” that are based on the general formula C Still, a host of names are commonly used to refer to sugar polymers in other textbooks and the literature. In this book, as well as in the earlier editions, the term glycan is used.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |