| Primary Identifier | IPR004124 | Type | Domain |
| Short Name | Glyco_hydro_33_N |
| description | O-Glycosyl hydrolases () are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycosyl hydrolases, based on sequence similarity, has led to the definition of 85 different families [, ]. This classification is available on the CAZy (CArbohydrate-Active EnZymes) website.Sialidases () hydrolyse alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)-glycosidic linkages of terminal sialic residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates. Sialidases may act as pathogenic factors in microbial infections [].The 1.8 Astructure of trans-sialidase from leech (Macrobdella decora, ) in complex with 2-deoxy-2, 3-didehydro-NeuAc was solved. The refined model comprisingresidues 81-769 has a catalytic β-propeller domain, a N-terminal lectin-like domain and an irregular β-strandeddomain inserted into the catalytic domain []. |