Glycoproteins, glycopeptides and

There is considerable evidence that a second trans-poson in the ER membrane is involved in retrograde transport of various molecules from the ER lumen to the cytosol. These molecules include unfolded or mis-folded glycoproteins, glycopeptides, and oligosaccharides. Some at least of these molecules are degraded in proteasomes. Thus, there is two-way traffic across the ER membrane. 

Kakehi, K., and Honda, S. (1996). Analysis of glycoproteins, glycopeptides and glycoprotein-derived oligosaccharides by high-performance capillary electrophoresis.. Chromatogr. A 720, 377-393. 

Nomenclature of Glycolipids http //www.chein.qinul.ac.Ltk/iupac/misc/glylp.htiiil Nomenclature of Glycoproteins, Glycopeptides and Peptidoglycans http //www. cheni.qnuil.ac.uk/iupae/mLSc/glycp.html... 

Figure 6. Inhibition of fi-galactosidase assimilation by inhibitor glycoproteins, glycopeptides, and derivatives. The open symbols represent data obtained with glycopeptides open squares, inhibitor glycoprotein fraction open circles, unit A glycopeptides prepared from thyroglobulin (30) and open triangle,unit B glycopeptides from thyroglobulin (30).

IUPAC-IUB Joint Commission on Biochemical. Nomenclature (JCBN). Nomenclature of glycoproteins, glycopeptides and peplidoglycans (Recommendations 1985). Ear. J. Biochem., 159 (1986) 1-6 Glycoronjugate J., 3 (1986) 123-134 / Biol Chem.. 262 (1987) 13-18 PureAppl. Chem., 60 (1988) 1389—1.394 Royal. Society of Chemistry Specialist Periodical. Report, Amino Acids and Peptides, Vol. 21,1990. 329. 

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