Glycosaminoglycans roles

EC-SOD is a copper-zinc enzyme located on endothelial cell surfaces. It is believed that EC-SOD binds to the vasculature via specific glycosaminoglycans — probably heparan sulphate on the endothelium. The association of EC-SOD with endothelial cell surfaces may indicate a cell-specific protective role. Eig/ity per cent of SOD activity in control, noninflamed synovial fluid is due to EC-SOD and its concentration is decreased by 50% in RA fluid (Marklund etal., 1986). 

The dolichol-linked D-mannosyl, D-glucosyl, and 2-acetamido-2-deoxy-D-glucosyl residues are used in the glycosylation of proteins and in the biosynthesis of D-m an nan.2,35 GlcNAc-PP-Dol may also play a role in the synthesis of glycosaminoglycans. Reaction 4 is the first step in the formation of lipid-linked precursors for cellulose.46... 

Jackson, R.L., Busch, S.J., Cardin, A.D. (1991) Glycosaminoglycans molecular properties, protein interactions, and role in physiological processes. Physiol. Rev. 71, 481-539. 

Redaelli, A., Vesentini, S., Soncini, M., Vena, P., Mantero, S., and Montevecchi, F. M. (2003). Possible role of decorin glycosaminoglycans in fibril to fibril force transfer in relative mature tendons A computational study from molecular to microstruc-tural level. / Biomech. 36, 1555-1569. 

No Heparin Heparin normally occurs as a macromolecule complexed with histamine in mast cells where its physiologic role is unknown. It is extracted for commercial use from porcine intestine or bovine lung. Heparin is a mixture of straight-chain anionic glycosaminoglycans... 

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