Glucan 1,3-alpha-glucosidase

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Glucan 1,3-alpha-glucosidase (EC 3.2.1.84, exo-1,3-alpha-glucanase, glucosidase II, 1,3-alpha-D-glucan 3-glucohydrolase) is an enzyme with systematic name 3-alpha-D-glucan 3-glucohydrolase.^[1] This enzyme catalyses the following chemical reaction

Hydrolysis of terminal (1->3)-alpha-D-glucosidic links in (1->3)-alpha-D-glucans

This enzyme does not act on nigeran although it has some activity against nigerose.

References

↑ Zonneveld, B.J.M. (1972). "A new type of enzyme, and exo-splitting α-1,3 glucanase from non-induced cultures of Aspergillus nidulans". Biochim. Biophys. Acta 258: 541–547. doi:10.1016/0005-2744(72)90245-8. PMID 4622000.

External links

Glucan 1,3-alpha-glucosidase at the US National Library of Medicine Medical Subject Headings (MeSH)

Hydrolase: sugar hydrolases (EC 3.2)

3.2.1: Glycoside hydrolases

Disaccharidase	Sucrase/Sucrase-isomaltase/Invertase Maltase Trehalase Lactase

Glucosidases	Cellulase Alpha-glucosidase Acid Neutral AB Neutral C Beta-glucosidase cytosolic Debranching enzyme

Other	Amylase Alpha-amylase Chitinase Lysozyme Neuraminidase NEU1 NEU2 NEU3 NEU4 Bacterial neuraminidase Viral neuraminidase Galactosidases Alpha Beta alpha-Mannosidase Glucuronidase Hyaluronidase Pullulanase Glucosylceramidase lysosomal non-lysosomal Galactosylceramidase Alpha-N-acetylgalactosaminidase NAGA Alpha-N-acetylglucosaminidase Fucosidase Hexosaminidase HEXA HEXB Iduronidase Maltase-glucoamylase Heparanase HPSE2

3.2.2: Hydrolysing
N-Glycosyl compounds

DNA glycosylases: Oxoguanine glycosylase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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