Pure glycans of defined structure are essential research tools in glycobiology. Unlike proteins and nucleic acids, which can be obtained in homogeneous forms by recombinant expression and polymerase chain reaction (PCR), respectively, glycans produced in biological systems are heterogeneous. Furthermore, the quantities that can be obtained from biological systems are often small. Chemical synthesis can be used to obtain homogeneous glycans in larger quantities than are available from most cellular production systems. Chemical synthesis can be further employed to incorporate glycans into homogeneous glycoproteins. This chapter summarizes the current state of the art in chemical methods to produce glycans. Enzymes can be used together with chemical methods to prepare diverse glycans (Chapter 54).
Copyright © 2022 The Consortium of Glycobiology Editors, La Jolla, California; published by Cold Spring Harbor Laboratory Press; doi:10.1101/glycobiology.4e.53. All rights reserved.