Glycoside Hydrolase Family 5 / Subf 34

Activities in Sub Family[retaining] arabinoxylan-specific endo-β-1,4-xylanase (EC 3.2.1.-);
Mechanism Retaining e
ClanGH-A
3D Structure Status( β / α ) 8 barrel
Catalytic Nucleophile/BaseGlu (experimental)
Catalytic Proton DonorGlu (experimental)
NoteOnce known as cellulase family A; many members have been assigned to subfamilies as described by Aspeborg et al. (2012) BMC Evol Biol. 12(1):186 (PMID: 22992189).
External resourcesCAZypedia; HOMSTRAD; PROSITE;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (2); Uniprot accession (3); PDB accession (6); 3D entries (1); cryst (0)
Bacteria
Protein Name EC# OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
Subf
 xylanase (M6;CtM6;CtXyl5A;Cthe_2193) (arabinoxylan-specific) (Xyl5A) 3.2.1.- Acetivibrio thermocellus ATCC 27405 ABN53395.1 A3DHG6
2Y8K[A] 1.47
5AK1[A] 2.64
5G56[A] 2.64
5LA0[A] α-L-Arap
1.65
5LA1[A] β-D-Xylp
1.90
5LA2[A,B] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)[α-L-Araf-(1-3)]-α-D-Xylp
β-L-Arap
1.65
34
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