Glycoside Hydrolase Family 43 / Subf 22

Activities in Familyβ-xylosidase (EC; α-L-arabinofuranosidase (EC; xylanase (EC; α-1,2-L-arabinofuranosidase (EC 3.2.1.-); exo-α-1,5-L-arabinofuranosidase (EC 3.2.1.-); [inverting] exo-α-1,5-L-arabinanase (EC 3.2.1.-); β-1,3-xylosidase (EC 3.2.1.-); [inverting] exo-α-1,5-L-arabinanase (EC 3.2.1.-); [inverting] endo-α-1,5-L-arabinanase (EC; exo-β-1,3-galactanase (EC; β-D-galactofuranosidase (EC
Activities in Sub Family
Mechanism Inverting
3D Structure Status5-fold β-propeller
Catalytic Nucleophile/BaseAsp
Catalytic Proton DonorGlu
NoteMany members have been assigned to subfamilies as described by Mewis et al. (2016) Appl. Environm. Microbiol. 82:1686-1692 (PMID: 26729713).
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (445); Uniprot accession (45);
All (448) Archaea (3) Bacteria (413) Eukaryota (32) Characterized (3)
Protein Name EC#OrganismGenBank UniprotPDB/3DSubf
 β-xylosidase (BAD_1527) Bifidobacterium adolescentis ATCC 15703 BAF40308.1 A1A3M5   22
 α-L-arabinofuranosidase (BlArafB;BLLJ_1853) Bifidobacterium longum subsp. longum JCM 1217 BAJ67517.1     22
 arabinanase 43A (RjAbn43A) (Abn43A) Ruminiclostridium josui JCM 17888 BBA94052.1     22

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