Glycoside Hydrolase Family 5 / Subf 19

Activities in Sub FamilyMannan exo-β-1,4-mannosidase (EC 3.2.1.-);
β-mannosidase (EC 3.2.1.25);
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 (270); Uniprot accession (2);
Archaea
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3DSubf
 exo-β-1,4-mannosidase (GH5_Pool2) 3.2.1.- pubmed
uncultured archaeon QFQ13828.1 A0A5P8EA52   19
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3DSubf
 β-mannosidase (Tth Man5;Theth_0949) 3.2.1.25 pubmed
Pseudothermotoga thermarum DSM 5069 AEH51033.1 F7YX66   19
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