Glycoside Hydrolase Family 5 / Subf 22

Activities in Sub FamilyXylan β-1,4-xylosidase (EC 3.2.1.37);
Endo-β-1,4-glucanase (EC 3.2.1.4);
Endo-β-1,4-xylanase (EC 3.2.1.8);
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 (815); Uniprot accession (5);
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3DSubf
 β-xylosidase (GE39) 3.2.1.37 pubmed
Geobacillus thermodenitrificans T81 ATG84609.1 A0A291I5R0   22
 β-xylosidase (T81Xyl5_22A; A4R35_07040) 3.2.1.37 pubmed
Thermogemmatispora tikiterensis T81 RAQ95285.1 A0A328VM88   22
Eukaryota
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3DSubf
 cellulase / CMCase (Cmc1) 3.2.1.4 doi
Aureobasidium pullulans 98 ACH69873.1
ACH63253.1
B5M499
B5M6A4
  22
 β-xylosidase (Xyl5;PcXyl5;PcGH5) 3.2.1.37 pubmed
Phanerochaete chrysosporium AHL69750.2
AIA81045.1
W8QRE4   22
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