Glycoside hydrolase family 29

rdf:langString Glycoside hydrolase family 29

rdf:langString Alpha-L-fucosidase

rdf:langString PDOC00324

rdf:langString crystal structure of thermotoga maritima alpha-fucosidase

rdf:langString GH29

rdf:langString IPR000933

rdf:langString PF01120

rdf:langString CL0058

rdf:langString Alpha_L_fucos

rdf:langString In molecular biology, glycoside hydrolase family 29 is a family of glycoside hydrolases. Glycoside hydrolases EC 3.2.1. 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 glycoside hydrolases, based on sequence similarity, has led to the definition of >100 different families. This classification is available on the CAZy web site, and also discussed at CAZypedia, an online encyclopedia of carbohydrate active enzymes. Glycoside hydrolase family 29 includes alpha-L-fucosidases, They are lysosomal enzymes responsible for hydrolyzing the alpha-1,6-linked fucose joined to the reducing-end N-acetylglucosamine of the carbohydrate moieties of glycoproteins. Alpha-L-fucosidase is responsible for hydrolysing the alpha-1,6-linked fucose joined to the reducing-end N-acetylglucosamine of the carbohydrate moieties of glycoproteins. Fucosylated glycoconjugates are involved in numerous biological events, making alpha-l-fucosidases, the enzymes responsible for their processing, critically important. Deficiency in alpha-l-fucosidase activity is associated with fucosidosis, a lysosomal storage disorder characterised by rapid neurodegeneration, resulting in severe mental and motor deterioration. The enzyme is a hexamer and displays a two-domain fold, composed of a catalytic (beta/alpha)(8)-like domain and a C-terminal beta-sandwich domain. Drosophila melanogaster spermatozoa contains an alpha-l-fucosidase that might be involved in fertilisation by interacting with alpha-l-fucose residues on the micropyle of the eggshell. In human sperm, membrane-associated alpha-l-fucosidase is stable for extended periods of time, which is made possible by membrane domains and compartmentalisation. These help preserve protein integrity.