Glycoside Hydrolase Family 3

Activities in Familyβ-glucosidase (EC 3.2.1.21); xylan 1,4-β-xylosidase (EC 3.2.1.37); β-glucosylceramidase (EC 3.2.1.45); β-N-acetylhexosaminidase (EC 3.2.1.52); α-L-arabinofuranosidase (EC 3.2.1.55); glucan 1,3-β-glucosidase (EC 3.2.1.58); glucan 1,4-β-glucosidase (EC 3.2.1.74); isoprimeverose-producing oligoxyloglucan hydrolase (EC 3.2.1.120); coniferin β-glucosidase (EC 3.2.1.126); exo-1,3-1,4-glucanase (EC 3.2.1.-); β-N-acetylglucosaminide phosphorylases (EC 2.4.1.-)
Mechanism Retaining
Catalytic Nucleophile/BaseAsp (experimental);
Catalytic Proton DonorGlu for hydrolases (experimental); histidine for phosphorylases (experimental)
NoteA recent paper by Macdonald et al. (PMID=25533455) has shown that the enzymes that cleave b-hexosaminides are in fact retaining b-glycoside phosphorylases.
External resourcesCAZypedia; HOMSTRAD; PRINTS; PROSITE;
Commercial Enzyme Provider(s)MEGAZYME; PROZOMIX ;
Statistics GenBank accession (19333); Uniprot accession (2560); PDB accession (117); 3D entries (40); cryst (4)
All (18458) Archaea (96) Bacteria (17207) Eukaryota (1053) Viruses (1) unclassified (101) Structure (40 - 4 cryst) Characterized (300)
| 1 | ... | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Eukaryota
Protein Name EC#OrganismGenBank UniprotPDB/3D
 unknown (WS02726_A09) (fragment)   Picea sitchensis ADM73776.1
ABK24242.1
ADM73753.1
ADM73771.1
ADM73772.1
ADM73773.1
A9NUD1
E0Z601
 
 β-glucosidase I (Bgl1;BGLI) 3.2.1.21 Pichia etchellsii ACF93471.1 B5B423  
 BXL1   Pinus tabuliformis AJP06250.1    
 β-glucosidase (Cel3A) (Cel3A) 3.2.1.21 Piromyces sp. E2 AAO41704.1 Q875K3  
 β-xylosidase (xyl) (fragment)   Platanus x hispanica CAJ91136.1 Q1M2Y9  
 BGL1 (fragment)   Pleospora sp. P56 AAR04444.1 Q69FJ8  
 Pa_1_4810   Podospora anserina S mat+ CAP60165.1
CDP22806.1
B2AAQ3  
 unnamed protein product   Podospora anserina S mat+ CAP62020.1
CDP29095.1
B2AF03  
 unnamed protein product   Podospora anserina S mat+ CAP64656.1
CDP30053.1
B2AKY3  
 unnamed protein product   Podospora anserina S mat+ CAP65606.1
CDP31600.1
B2ANM6  
 unnamed protein product   Podospora anserina S mat+ CAP66449.1
CDP28177.1
B2AQM2  
 unnamed protein product   Podospora anserina S mat+ CAP66618.1
CDP28353.1
B2AR40  
 Pa_7_3190   Podospora anserina S mat+ CAP68372.1
CDP31843.1
B2AVE8  
 Pa_2_9330   Podospora anserina S mat+ CAP73569.1
CDP25972.1
B2B6Z1  
 unnamed protein product   Podospora anserina S mat+ CAP73666.1
CDP26068.1
B2B788  
 Pa_3_590   Podospora anserina S mat+ CAP61089.1
CDP26542.1
B2ACC4  
 unnamed protein product   Podospora anserina S mat+ CAP69216.1
CDP23238.1
B2AXU2  
 β-1,4-xylosidase (PtaBXL1;Bxl2) 3.2.1.37 Populus tremula x Populus alba CAJ41429.1
CAW52631.1
CBC23891.1
Q333M3  
 β-1,4-xylosidase (PtaBXL2;Bxl3)   Populus tremula x Populus alba CAJ65921.1 Q2MCJ6  
 β-1,4-xylosidase (PtaBXL3;Bxl4)   Populus tremula x Populus alba CAJ65922.1
CAW96531.1
CAW96694.1
CAX01908.1
CAX07262.1
CBD30898.1
Q2MCJ5  
 β-1,4-xylosidase (PtaBXL4;Bxl7)   Populus tremula x Populus alba CAJ65923.1
CAW96530.1
CAW96693.1
CAX01907.1
CAX07261.1
CBD30897.1
Q2MCJ4  
 unknown (WS01225_L03)   Populus trichocarpa ABK95015.1 A9PF62  
 unknown (WS01314_I22) (fragment)   Populus trichocarpa x Populus deltoides ABK96385.1 A9PJ32  
 β-xylosidase (Arf/Xyl) (fragment)   Prunus persica AAM00218.1
BAF43576.1
P83344  
 α-L-arabinofuranosidase/β-xylosidase (Arf/Xyl;PsARF/XYL)   Prunus salicina AFU54452.1
AFU54451.1
   
 β-xylosidase (Xyl;PcXYL) (fragment)   Pyrus communis CAH18932.1 Q68UW4  
 α-L-arabinofuranosidase / β-xylosidase (Arf2) 3.2.1.55 Pyrus pyrifolia BAD98523.1
BAF79669.1
CAW52634.1
CBC23897.1
Q4W7I3  
 α-L-arabinofuranosidase/β-D-xylosidase 2 (Arf2)   Pyrus x bretschneideri AGR44452.1    
 α-L-arabinofuranosidase / β-1,4-xylosidase (RsAraf1) 3.2.1.55 Raphanus sativus BAE44362.1
CAW52632.1
CBC23893.1
Q3V5Q1  
 β-xylosidase (Bxl1) 3.2.1.37 Rasamsonia emersonii CBS 814.70 AAL32053.2 Q8X212  
 avenacinase (Aven1;Aven) 3.2.1.- Rasamsonia emersonii CBS 814.70 AAM94393.3 Q8J261  
 β-glucosidase (ReCel3A) (Cel3A) 3.2.1.21 Rasamsonia emersonii IMI 392299 AAL69548.3
AAL69548.2
Q8TGI8 4D0J[A,B,C,D]
5JU6[A,B,C,D]
 β-glucosidase   Rhizoctonia solani AG3 ABL67526.1    
 β-N-acetylglucosaminidase (Nag;RmNag) 3.2.1.52 Rhizomucor miehei CAU432 AGC24356.1   4ZM6[A,B]
 β-glucosidase (RmBglu3) (Bglu3B) 3.2.1.21 Rhizomucor miehei CAU432 AIY32164.1    
 β-glucosidase (Bgl) 3.2.1.21 Rhizomucor miehei NRRL 5282 CAP58431.2
CAP58431.1
B0JE65  
 RO3G_04557.1 (Rory-Bgl103) (13376)   Rhizopus delemar RA 99-880 EIE79852.1    
 RO3G_04558.1 (Rory-Bgl104) (fragment) (13377)   Rhizopus delemar RA 99-880 EIE79853.1    
 RHTO0S_06e11716g   Rhodotorula toruloides CECT1137 CDR42254.1    
 RHTO0S_25e00936g   Rhodotorula toruloides CECT1137 CDR49308.1    
 RHTO0S_25e00958g   Rhodotorula toruloides CECT1137 CDR49309.1    
 RHTO0S_02e09956g   Rhodotorula toruloides CECT1137 CDR37030.1    
 β-glucosidase 2 (Bgl2) 3.2.1.21 Saccharomycopsis fibuligera AAA34315.1 P22507  
 β-glucosidase 1 (Bgl1) 3.2.1.21 Saccharomycopsis fibuligera ATCC 36309 AAA34314.1 P22506  
 β-glucosidase 1 (Bgl1)   Saccharomycopsis fibuligera BCRC 20455 ACH90244.1 B5TWK3  
 β-glucosidase (Bgl1;SfBGL1) (partial) 3.2.1.21 Saccharomycopsis fibuligera CGMCC:2.1626 AEV40916.1    
 PICST_1541   Scheffersomyces stipitis CBS 6054 ABN66623.1
ABN66623.2
   
 PICST_65767   Scheffersomyces stipitis CBS 6054 ABN67130.1    
 PICST_61725   Scheffersomyces stipitis CBS 6054 ABN67656.1
ABN67656.2
   
 PICST_41452   Scheffersomyces stipitis CBS 6054 ABN65244.1    
 PICST_77156   Scheffersomyces stipitis CBS 6054 ABN65475.1
ABN65475.2
   
 Smp_043390   Schistosoma mansoni Puerto Rico CCD81740.1
CAZ31914.1
C4Q8Y3  
 β-glucosidase (fragment) 3.2.1.21 Schizophyllum commune AAA33925.1 P29091  
 β-glucosidase bgl3a_2 (fragment)   Schizophyllum commune KUC9397 AKN57009.1    
 β-glucosidase bgl3a_1   Schizophyllum commune KUC9397 AKN57008.1    
 β-glucosidase (SPBC1683.04) 3.2.1.21 Schizosaccharomyces pombe 972h- CAB91166.1
NP_595060.1
Q9P6J6  
 sscle_03g022640   Sclerotinia sclerotiorum 1980 UF-70 APA07494.1    
 sscle_03g030980   Sclerotinia sclerotiorum 1980 UF-70 APA08328.1    
 sscle_02g012480   Sclerotinia sclerotiorum 1980 UF-70 APA06478.1    
 sscle_01g008460   Sclerotinia sclerotiorum 1980 UF-70 APA06076.1    
 sscle_08g066260   Sclerotinia sclerotiorum 1980 UF-70 APA11856.1    
 sscle_14g101370   Sclerotinia sclerotiorum 1980 UF-70 APA15367.1    
 sscle_06g051350   Sclerotinia sclerotiorum 1980 UF-70 APA10365.1    
 sscle_05g043280   Sclerotinia sclerotiorum 1980 UF-70 APA09558.1    
 sscle_10g079370   Sclerotinia sclerotiorum 1980 UF-70 APA13167.1    
 sscle_06g051500   Sclerotinia sclerotiorum 1980 UF-70 APA10380.1    
 sscle_08g063580   Sclerotinia sclerotiorum 1980 UF-70 APA11588.1    
 sscle_15g105550   Sclerotinia sclerotiorum 1980 UF-70 APA15785.1    
 sscle_11g082920   Sclerotinia sclerotiorum 1980 UF-70 APA13522.1    
 cell wall β-glucosidase   Secale cereale AAS97960.1 Q6PQF3  
 β-glucosidase (tomatinase;B2Tom) 3.2.1.21 Septoria lycopersici AAB08445.1
AAB08446.1
Q99324 cryst
 PIIN_00201   Serendipita indica DSM 11827 CCA66516.1    
 PIIN_00392   Serendipita indica DSM 11827 CCA66712.1    
 PIIN_01553   Serendipita indica DSM 11827 CCA67726.1    
 PIIN_02711   Serendipita indica DSM 11827 CCA68850.1    
 PIIN_03039   Serendipita indica DSM 11827 CCA69140.1    
 PIIN_04111   Serendipita indica DSM 11827 CCA70172.1    
 PIIN_06333   Serendipita indica DSM 11827 CCA72399.1    
 PIIN_07416   Serendipita indica DSM 11827 CCA73462.1    
 β-xylosidase, partial (fragment)   Silene latifolia AEL98937.1    
 GH   Sinapis alba AFM39013.1
AFM39016.1
   
 β-xylosidase (LeXyl2;Xyl2) (fragment)   Solanum lycopersicum BAC98299.1 Q76MS4  
 β-xylosidase (LeXyl1;Xyl1)   Solanum lycopersicum BAC98298.1
CAW52640.1
CAW96537.1
CAW96700.1
CAX01914.1
CAX07268.1
CBC23909.1
CBD30904.1
Q76MS5  
 α-L-arabinofuranosidase / β-xylosidase (SlArf/Xyl2)   Solanum lycopersicum BAL44717.1    
 α-L-arabinofuranosidase / β-xylosidase (SlArf/Xyl3)   Solanum lycopersicum BAL44718.1    
 α-L-arabinofuranosidase / β-xylosidase (SlArf/Xyl4)   Solanum lycopersicum BAL44719.1    
 α-L-arabinofuranosidase / β-xylosidase (SlArf/Xyl1)   Solanum lycopersicum BAL44716.1    
 GH3 β-glucosidase (Sbgl3)   Solanum torvum APU53952.1    
 SRS1_16700   Sporisorium reilianum f. sp. reilianum SRS1_H2-8 SJX66379.1    
 SRS1_10116   Sporisorium reilianum f. sp. reilianum SRS1_H2-8 SJX60494.1    
 SRS1_14937   Sporisorium reilianum f. sp. reilianum SRS1_H2-8 SJX64288.1    
 SRS1_16869   Sporisorium reilianum f. sp. reilianum SRS1_H2-8 SJX66648.1    
 sr10116   Sporisorium reilianum SRZ2 CBQ67857.1    
 sr14937   Sporisorium reilianum SRZ2 CBQ68654.1    
 sr16700   Sporisorium reilianum SRZ2 CBQ71352.1    
 sr16869   Sporisorium reilianum SRZ2 CBQ71612.1    
 SPSC_03395   Sporisorium scitamineum SscI8 CDU24324.1    
 SPSC_02695   Sporisorium scitamineum SscI8 CDU24066.1    
 SPSC_05333   Sporisorium scitamineum SscI8 CDU25440.1    
 SPSC_00584   Sporisorium scitamineum SscI8 CDU21954.1    
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