Glycoside Hydrolase Family 3

Activities in Familyβ-glucosidase (EC; xylan 1,4-β-xylosidase (EC; β-glucosylceramidase (EC; β-N-acetylhexosaminidase (EC; α-L-arabinofuranosidase (EC; glucan 1,3-β-glucosidase (EC; glucan 1,4-β-glucosidase (EC; isoprimeverose-producing oligoxyloglucan hydrolase (EC; coniferin β-glucosidase (EC; exo-1,3-1,4-glucanase (EC 3.2.1.-); β-N-acetylglucosaminide phosphorylases (EC 2.4.1.-)
Mechanism Retaining
Catalytic Nucleophile/BaseAsp (experimental);
Catalytic Proton DonorGlu for hydrolases (experimental); histidine for phosphorylases (experimental)
NoteA recent paper by Macdonald et al. (PMID=25533455) has shown that the enzymes that cleave b-hexosaminides are in fact retaining b-glycoside phosphorylases.
External resourcesCAZypedia; HOMSTRAD; PRINTS; PROSITE;
Commercial Enzyme Provider(s)MEGAZYME; PROZOMIX ;
Statistics GenBank accession (16827); Uniprot accession (2560); PDB accession (105); 3D entries (33); cryst (4)
All (15979) Archaea (94) Bacteria (14836) Eukaryota (948) Viruses (1) unclassified (100) Structure (33 - 4 cryst) Characterized (291)

Last update: 2017-09-04 © Copyright 1998-2017
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