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Article Dans Une Revue Glycoconjugate Journal Année : 2023

The vertebrate sialylation machinery: structure-function and molecular evolution of GT-29 sialyltransferases

Résumé

Every eukaryotic cell is covered with a thick layer of complex carbohydrates with essential roles in their social life. In Deuterostoma, sialic acids present at the outermost positions of glycans of glycoconjugates are known to be key players in cellular interactions including host-pathogen interactions. Their negative charge and hydrophilic properties enable their roles in various normal and pathological states and their expression is altered in many diseases including cancers. Sialylation of glycoproteins and glycolipids is orchestrated by the regulated expression of twenty sialyltransferases in human tissues with distinct enzymatic characteristics and preferences for substrates and linkages formed. However, still very little is known on the functional organization of sialyltransferases in the Golgi apparatus and how the sialylation machinery is finely regulated to provide the ad hoc sialome to the cell. This review summarizes current knowledge on sialyltransferases, their structure–function relationships, molecular evolution, and their implications in human biology.
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hal-04221332 , version 1 (28-09-2023)

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Anne Harduin Lepers. The vertebrate sialylation machinery: structure-function and molecular evolution of GT-29 sialyltransferases. Glycoconjugate Journal, 2023, Glycoconjugate Journal, 40 (4), pp.473-492. ⟨10.1007/s10719-023-10123-w⟩. ⟨hal-04221332⟩
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