Glycoproteins carbohydrate composition

There is little work that definitively describes the composition of fungal adhesives. However, it is apparent that fungi do not share either common adhesives or mechanisms for adhesion. One factor that does appear with regularity is that the surface of fungal germ tubes are typically ensheathed by a glycoprotein/carbohydrate matrix (41, 51.r JU.) / and... 

Shiyan, S.D. and Bovin, N.V. (1997) Carbohydrate composition and immunomodulatory activity of different glycoforms of al-acid glycoprotein. Glycoconjugate Journal, 14, 631-638. 

The unique carbohydrate composition of the glycoproteins that constitute the antigenic determinants on red blood cells in part contributes to the relative immuno-genicity of the A, B, and Rh (D) red blood cell groups in human blood. 

Lipid bilayers are the basis of the membranes that surround the cytoplasm (the plasma membrane) and subcel-lular stmctures such as the nucleus, mitochondria, and the endoplasmic reticulum. Membranes are made up of lipids (most commonly phosphogylcerides, phosphosphingolipid, and, in the plasma membranes of animals, cholesterol) and proteins. Although small amounts of carbohydrate are also present, this is usually present as a glycolipid or glycoprotein. The composition of membranes varies depending on the type of membrane. 

Elwood, P., et al. (1988). Determination of the Carbohydrate Composition of Mammalian Glycoproteins by Capillary Gas Chromatography/Mass Spectrometry, Anal. Biochem. 175 202-221. 

An a2-acute phase macroglobulin has been isolated from rat under conditions avoiding damage to biological activity.The molecular weight and carbohydrate composition of the glycoprotein were similar to those of Q 2 macro-globulins from other sources. 

There is no single method applicable to isolation of all glycoproteins because glycoproteins are individually characteristic in their amino acid sequences, carbohydrate compositions and structures, and the number and location of attachment sites for the oligosaccharide. Therefore, the applicability of methods with different separation modes is examined here. In order to facilitate understanding the structural features of glycoproteins, the linear structural models of the glycoproteins used for these studies are illustrated in Fig. 1. 

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