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)
Eukaryota
Protein Name EC#OrganismGenBank UniprotPDB/3D
 Man26   Alternaria sp. DW1 AKT45096.1    
 EGX50257.1   Arthrobotrys oligospora ATCC 24927 EGX50257.1    
 endo-β-1,4-mannanase (AnMan26A;AN7413.2) (Man26A) 3.2.1.78 Aspergillus nidulans FGSC A4 EAA61784.1 C8VCC9
Q5AWB7
 
 AN3326.2   Aspergillus nidulans FGSC A4 EAA63294.1 C8VHW8
Q5B804
 
 AN3336.2   Aspergillus nidulans FGSC A4 EAA63304.1 C8VHV5
Q5B7Z4
 
 endo-β-1,4-mannanase (An15g07760) (Man26A) 3.2.1.78 Aspergillus niger CBS 513.88 CAK42663.1 A2R6F5  
 AO090011000055   Aspergillus oryzae RIB40 BAE64615.1 Q2U1F0  
 glycoside hydrolase family 26 protein (Bofut4_p092060.1)   Botrytis cinerea T4 CCD50247.1    
 glycoside hydrolase family 26 protein (Bofut4_p061790.1)   Botrytis cinerea T4 CCD43969.1    
 ORF   Hemileia vastatrix AGT80089.1    
 ORF (fragment)   Hemileia vastatrix AGT80112.1    
 β-mannanase 3.2.1.78 Humicola insolens AAQ31840.1    
 ORF   Leptosphaeria maculans JN3 v23.1.3 CBX90939.1 E4ZHV6  
 BN887_04252   Melanopsichium pennsylvanicum 4 CDI53094.1    
 BN887_02731   Melanopsichium pennsylvanicum 4 CDI55782.1    
 NCU08087.1   Neurospora crassa OR74A XP_328793.1    
 Pc22g06750   Penicillium rubens Wisconsin 54-1255 CAP97963.1 B6HQ62  
 ORF   Phakopsora pachyrhizi ALL41322.1    
 family 26 glycoside hydrolase (fragment)   Phakopsora pachyrhizi ALL40740.1    
 ORF (fragment)   Phakopsora pachyrhizi ALL40968.1    
 ORF   Phakopsora pachyrhizi ALL41269.1    
 ORF (fragment)   Phakopsora pachyrhizi ALL40962.1    
 β-mannanase A (ManA) 3.2.1.78 Piromyces sp. CAA62968.1 P55296  
 β-mannanase B (ManB) 3.2.1.78 Piromyces sp. CAA66061.1 P55297  
 β-mannanase C (ManC) 3.2.1.78 Piromyces sp. CAA66134.1 P55298  
 β-mannanase (ManA) (fragment)   Piromyces sp. E2 AAP30747.1 Q870B4  
 mannanase (ManB) (fragment)   Piromyces sp. E2 AAP30748.1 Q870B3  
 endo-β-1,4-mannanase (PaMan26A;Pa_5_1950) (Man26A) 3.2.1.78 Podospora anserina S mat+ CAP61906.1
ADO14135.1
CDP28981.1
B2AEP0 3ZM8[A]
 RHTO0S_12e01002g   Rhodotorula toruloides CECT1137 CDR46150.1    
 RHTO0S_14e03202g   Rhodotorula toruloides CECT1137 CDR47404.1    
 sscle_03g026500   Sclerotinia sclerotiorum 1980 UF-70 APA07880.1    
 PIIN_07359   Serendipita indica DSM 11827 CCA73405.1    
 SPSC_06026   Sporisorium scitamineum SscI8 CDU25855.1    
 SPSC_00779   Sporisorium scitamineum SscI8 CDU22149.1    
 β-mannanase (ManC;RsManC;RsMan26C) (partial) (Man26C) 3.2.1.78 Symbiotic protist of Reticulitermes speratus BAL68133.1   3WDQ[A]
3WDR[A]
 β-mannanase (mannobiose-producing) (RsManH;RsMan26H) (fragment) 3.2.1.100 Symbiotic protist of Reticulitermes speratus BAN57513.1    
 MYCTH_99077   Thermothelomyces thermophila ATCC 42464 AEO53670.1    
 mannanase (RsMan26A) (fragment) (Man26A)   uncultured symbiotic protist of Reticulitermes speratus BBA49652.1    
 mannanase (RsMan26B) (fragment) (Man26B)   uncultured symbiotic protist of Reticulitermes speratus BBA49653.1    
 UBRO_03334   Ustilago bromivora UB2112 SAM81579.1    
 UBRO_07595   Ustilago bromivora UB2112 SAM85033.1    
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