Glycoside Hydrolase Family 43 / Subf 1

Activities in Familyβ-xylosidase (EC 3.2.1.37); α-L-arabinofuranosidase (EC 3.2.1.55); arabinanase (EC 3.2.1.99); xylanase (EC 3.2.1.8); galactan 1,3-β-galactosidase (EC 3.2.1.145); 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.-)
Activities in Sub Family
Mechanism Inverting
ClanGH-F
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. in press (PMID: 26729713).
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (720); Uniprot accession (54); PDB accession (9); 3D entries (2); cryst (0)
Bacteria
Protein Name EC# OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
Subf
 β-xylosidase / α-L-arabinofuranosidase (CoXyl43) 3.2.1.37
3.2.1.55
uncultured bacterium BAS02080.1  
5GLK[A,B] 1.70
5GLL[A,B] 1.80
5GLM[A,B] β-D-Xylp-(1-4)-β-D-Xylp
β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
1.80
5GLN[A,B] α-D-Xylp
β-D-Xylp
β-D-Xylp-(1-4)-β-D-Xylp
β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
1.70
5GLO[A,B] α-L-Arap
β-L-Araf
1.80
5GLP[A,B] α-L-Arap
1.80
5GLQ[A,B] β-D-Xylp-(1-4)-β-D-Xylp
β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
β-L-Araf
1.70
5GLR[A,B] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp
β-L-Araf
1.70
1
unclassified
Protein Name EC# OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
Subf
 β-xylosidase (RS223-BX) 3.2.1.37 uncultured organism AFP23142.1  
4MLG[A,B,C,D,E,F,G,H,I,J, 2.70
1
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