Glycoside Hydrolase Family 26

Activities in Familyβ-mannanase (EC 3.2.1.78); exo-β-1,4-mannobiohydrolase (EC 3.2.1.100); β-1,3-xylanase (EC 3.2.1.32); lichenase / endo-β-1,3-1,4-glucanase (EC 3.2.1.73); mannobiose-producing exo-β-mannanase (EC 3.2.1.-)
Mechanism Retaining
ClanGH-A
3D Structure Status( β / α ) 8
Catalytic Nucleophile/BaseGlu (experimental)
Catalytic Proton DonorGlu (experimental)
Noteformerly known as cellulase family I.
External resourcesCAZypedia; PRINTS;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (1516); Uniprot accession (309); PDB accession (30); 3D entries (13); cryst (2)
All (1462) Archaea (7) Bacteria (1399) Eukaryota (41) unclassified (15) Structure (13 - 2 cryst) Characterized (72)
unclassified
Protein Name EC#OrganismGenBank UniprotPDB/3D
 endo-β-1,4-mannanase precursor (Manem17)   insect gut metagenome ARK08557.1    
 β-1,4-galactomannanase precursor (Manem6)   insect gut metagenome ARK08556.1    
 β-mannanase (LC2)   uncultured microorganism ADB80099.1 D3JVT0  
 β-mannanase (LC2)   uncultured microorganism ADB80101.1 D3JVT2  
 β-mannanase (LC2)   uncultured microorganism ADB80106.1 D3JVT7  
 mannanase   uncultured microorganism AET14832.1    
 β-mannanase (DC2-5)   uncultured microorganism ACA61146.1 B1PLI9  
 β-mannanase (DC23-2)   uncultured microorganism ACA61159.1 B1PLK2  
 β-mannanase   uncultured organism AAT36643.1 Q6IWK4  
 SARM_0007 / 3811766_160700 / TW-10 3.2.1.- uncultured organism ADX05678.1    
 SARM_0038 / 798985_48230 / TW-11   uncultured organism ADX05709.1    
 Sequence 6 from patent US 7504120.   unidentified ACP87279.1
ACW01907.1
   
 Sequence 32 from patent US 6566114   unidentified AAQ31849.1    
 RR.01-3   unidentified microorganism CAJ19136.1 Q2YI67  
 RR.02-1 (ManB)   unidentified microorganism CAJ19138.1 Q2YI65  
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