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Review

Nucleocytoplasmic Glycosylation

In: Essentials of Glycobiology [Internet]. 3rd edition. Cold Spring Harbor (NY): Cold Spring Harbor Laboratory Press; 2015. Chapter 18.
2017.
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Review

Nucleocytoplasmic Glycosylation

Christopher M. West et al.
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Excerpt

Although glycoconjugates predominate at the cell surface, in cellular secretions, and in the extracellular matrix, within the secretory pathway and lysosomes, there are also stable residential glycoproteins in the cytoplasm, nucleus, and plastids of eukaryotes. The prevalence of β-linked O-GlcNAc is so great in eukaryotes that an entire chapter is devoted to it (Chapter 19). This review discusses all other forms of cytoplasmic glycosylation, both established and speculative. The analysis begins with other well-documented forms of monoglycosylation in prokaryotes, expands to complex forms in protists, and provides examples of monoglycosylation exploited by bacterial toxins to co-opt processes vital to eukaryotes. In addition, conventional N-glycans are reported on a subset of mitochondrial and chloroplast proteins. Finally, the potential for a more extensive than currently appreciated occurrence of cytoplasmic glycosylation, as suggested by many examples of nuclear and cytoplasmic glycoproteins and glycosaminoglycans, which are yet to be confirmed by modern methods, is discussed. The numerous types of cytoplasmic and nuclear lectins that have been described are also reviewed.

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References

    1. Marchase RB, Hiller AM. 1986. Glucose phosphotransferase and intracellular trafficking. Mol Cell Biochem 72: 101–107. - PubMed
    1. Hart GW, Haltiwanger RS, Holt GD, Kelly WG. 1989. Glycosylation in the nucleus and cytoplasm. Annu Rev Biochem 58: 841–874. - PubMed
    1. Chandra NC, Spiro MJ, Spiro RG. 1998. Identification of a glycoprotein from rat liver mitochondrial inner membrane and demonstration of its origin in the endoplasmic reticulum. J Biol Chem 273: 19715–19721. - PubMed
    1. Lee JY, Spicer AP. 2000. Hyaluronan: A multifunctional, megadalton, stealth molecule. Curr Opin Cell Biol 12: 581–586. - PubMed
    1. Lomako J, Lomako WM, Whelan WJ. 2004. Glycogenin: The primer for mammalian and yeast glycogen synthesis. Biochim Biophys Acta 1673: 45–55. - PubMed

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