The S-Layer Glycome—Adding to the Sugar Coat of Bacteria
| Autor: | Robin Ristl, Kerstin Steiner, Kristof Zarschler, Sonja Zayni, Paul Messner, Christina Schäffer |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | International Journal of Microbiology, Vol 2011 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1687-918X 1687-9198 |
| DOI: | 10.1155/2011/127870 |
| Popis: | The amazing repertoire of glycoconjugates present on bacterial cell surfaces includes lipopolysaccharides, capsular polysaccharides, lipooligosaccharides, exopolysaccharides, and glycoproteins. While the former are constituents of Gram-negative cells, we review here the cell surface S-layer glycoproteins of Gram-positive bacteria. S-layer glycoproteins have the unique feature of self-assembling into 2D lattices providing a display matrix for glycans with periodicity at the nanometer scale. Typically, bacterial S-layer glycans are O-glycosidically linked to serine, threonine, or tyrosine residues, and they rely on a much wider variety of constituents, glycosidic linkage types, and structures than their eukaryotic counterparts. As the S-layer glycome of several bacteria is unravelling, a picture of how S-layer glycoproteins are biosynthesized is evolving. X-ray crystallography experiments allowed first insights into the catalysis mechanism of selected enzymes. In the future, it will be exciting to fully exploit the S-layer glycome for glycoengineering purposes and to link it to the bacterial interactome. |
| Databáze: | Directory of Open Access Journals |
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