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Glycoside Hydrolase Family 3

Activities in Family[retaining] β-NAcetylglucosaminoside phosphorylase (EC 2.4.1.-);
β-glycan phosphorylase (EC 2.4.1.-);
MLG exo-β-1,4-glucosidase (EC 3.2.1.-);
[retaining] xyloglucan-specific exo-β-1,4-glucosidase (EC 3.2.1.-);
α-L-arabinopyranosidase (EC 3.2.1.-);
Avenacinase (EC 3.2.1.-);
β-1,2-glucosidase (EC 3.2.1.-);
β-1,6-glucosidase (EC 3.2.1.-);
D-4,5-unsaturated β-glucuronyl hydrolase (EC 3.2.1.-);
Exo-β-1,3-1,4-glucanase (EC 3.2.1.-);
Stevioside-β-1,2-glucosidase (EC 3.2.1.-);
Tomatinase β-1,2-glucosidase (EC 3.2.1.-);
[retaining] isoprimeverose-producing oligoxyloglucan hydrolase (EC 3.2.1.120);
Coniferin β-glucosidase (EC 3.2.1.126);
Chitosanase (EC 3.2.1.132);
Protodioscin 26-O-β-D-glucosidase (EC 3.2.1.186);
β-glucosidase (EC 3.2.1.21);
β-galactosidase (EC 3.2.1.23);
β-glucuronidase (EC 3.2.1.31);
Xylan β-1,4-xylosidase (EC 3.2.1.37);
β-D-fucosidase (EC 3.2.1.38);
β-glucosylceramidase (EC 3.2.1.45);
β-N-acetylhexosaminidase (EC 3.2.1.52);
α-L-arabinofuranosidase (EC 3.2.1.55);
Exo-β-1,3-glucanase (EC 3.2.1.58);
Endo-β-1,3(4)-glucanase / lichenase-laminarinase (EC 3.2.1.6);
β-1,3-xylosidase (EC 3.2.1.72);
Lichenase / endo-β-1,3-1,4-glucanase (EC 3.2.1.73);
Exo-β-1,4-glucanase / cellodextrinase (EC 3.2.1.74);
Endo-β-1,4-xylanase (EC 3.2.1.8);
Mechanism Retaining e
3D Structure Status( β / α ) 8 barrel
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 some 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 (63202); Uniprot accession (353); PDB accession (199); 3D entries (57); cryst (3)
Summary
Download GH3 (73588) Taxonomic display Structure (57 - 3 cryst) Characterized (371)
| 1 | 2 | 3 | 4 |
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D
 β-glucosidase (CelB) (fragment) 3.2.1.21 pubmed
 unidentified bacterium AAA91967.1 Q60055  
 β-glucosidase (LamN; A1Q_4052) 3.2.1.21 pubmed
 Vibrio campbellii HY01 EDL69935.1    
 β-N-acetylhexosaminidase (NagZ;VC0692) 3.2.1.52 pubmed
 Vibrio cholerae O1 biovar El Tor str. N16961 AAF93857.1
NP_230341.1		 Q9KU37 1TR9[A]
1Y65[A]
2OXN[A]
3GS6[A]
3GSM[A]
  β-N-acetylglucosaminidase II (ExoII) 3.2.1.52 pubmed
 Vibrio furnissii AAC44686.2
AAE36541.1		 P96157  
 [N-glycan] β-1,2-xylosidase (NixI;XCC2892) 3.2.1.37 pubmed
 Xanthomonas campestris pv. campestris str. ATCC 33913 AAM42164.1
NP_638240.1		 Q8P6S3  
 exo-β-1,4-glucanase (XacBgl3A; BglS; XAC1448) 3.2.1.74 doi
 Xanthomonas citri pv. citri str. 306 AAM36318.1
NP_641782.1
WP_040107594.1		 Q8PMI0  
 exo-β-1,4-glucanase (XacBgl3B; CelD; XAC1793) 3.2.1.74 doi
 Xanthomonas citri pv. citri str. 306 AAM36656.1
NP_642120.1
WP_011051143.1		 Q8PLK4  
 β-xylosidase (XacXyl3A; XAC3076) 3.2.1.37 doi
 Xanthomonas citri pv. citri str. 306 AAM37921.1
NP_643385.1		 Q8PI22  
 exo-β-1,4-glucanase (XacBgl3C; BglX; XAC3869) 3.2.1.74 doi
 Xanthomonas citri pv. citri str. 306 AAM38711.1
NP_644175.1
WP_011052578.1		 Q8PFV3  
 β-xylosidase (XacXyl3B; XAC4231) 3.2.1.37 doi
 Xanthomonas citri pv. citri str. 306 AAM39066.1
NP_644530.1		 Q8PEV9  
 β-xylosidase / α-L-arabinofuranosidase (Xyl3A; PRU_2730) (Xyl3A) 3.2.1.37
3.2.1.55		 pubmed
pubmed
 Prevotella ruminicola 23 ACN78955.1
ADE82109.1		 D5EY15  
Eukaryota
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D
 α-L-arabinofuranosidase / β-1,4-xylosidase (Xyl3;AtBX3;At5g09730) 3.2.1.37
3.2.1.55		 pubmed
pubmed
 Arabidopsis thaliana CAB89357.1
AAK96639.1
AED91439.1
BAB09531.1
CAL81217.1
CAW52616.1
CBC23860.1
NP_196535.1		 Q9LXD6  
 α-L-arabinofuranosidase / β-D-xylosidase (Xyl1;BXL1;AtBXL1;At5g49360) 3.2.1.37
3.2.1.55		 pubmed
pubmed
 Arabidopsis thaliana BAB09906.1
AAM53325.1
AED95802.1
BAF00595.1
CAW52618.1
CAW96520.1
CAW96683.1
CAX01897.1
CAX07251.1
CBC23864.1
CBD30887.1
NP_199747.1		 Q0WL73
Q0WQK4
Q9FGY1		  
 β-xylosidase (Xyl4;AtBXL4;At5g64570) 3.2.1.37 pubmed
 Arabidopsis thaliana BAB11424.1
AED97922.1
ANM70278.1
ANM70279.1
BAD94481.1
CAW52619.1
CBC23866.1
NP_201262.1		 A0A178UTL8
A0A1P8BF93
A0A1P8BFA0
Q9FLG1		  
 β-glucosidase 1 (Bgl1;AaBGL1;AaBg1;AabG) 3.2.1.21 pubmed
 Aspergillus aculeatus F-50 BAA10968.1
AER93027.1		 G8GBT7
P48825		 4IIB[A,B]
4IIC[A,B]
4IID[A,B]
4IIE[A,B]
4IIF[A,B]
4IIG[A,B]
4IIH[A,B]
 β-xylosidase (Xyl) 3.2.1.37 pubmed
 Aspergillus awamori K4 BAE19756.1
CAW52633.1
CBC23895.1		 Q4AEG8  
 β-xylosidase (Xylx100) 3.2.1.37 pubmed
 Aspergillus awamori X-100 ACF61038.1 B5AK91
Q4AEG8		  
 β-glucosidase (Bgl1;NfBGL1) 3.2.1.21 pubmed
 Aspergillus fischeri P1 / CGMCC 3.15369 AIM56897.1 A0A096Y6Z0  
 β-glucosidase (AfG;AFUA_8G02100) 3.2.1.21 pubmed
 Aspergillus fumigatus Af293 EAL84958.1 Q4WBF4  
 β-glucosidase (AfBG;AFUA_1G17410;Afu1g17410) 3.2.1.21 pubmed
 Aspergillus fumigatus Af293 EAL91070.1 Q4WR62  
 β-glucosidase 1 (Afum-Bgl101;AfbG;AFUA_1G05770;Afu1g05770) 3.2.1.21 pubmed
 Aspergillus fumigatus Af293 EAL88289.1
ABU35789.1
ACE10248.1
ACH05254.1
ACJ91428.1		 Q4WJJ3 5FJI[A,B]
 β-glucosidase / cellulase (Bgl3) 3.2.1.21 pubmed
 Aspergillus fumigatus Z5 ADX78143.1 F1DGF3  
 β-1,4-xylosidase (XylA) 3.2.1.37 pubmed
 Aspergillus japonicus MU-2 BAG82824.1 B6EY09  
 β-glucosidase A (BglA) 3.2.1.21 pubmed
 Aspergillus kawachii IFO4308 BAA19913.1 P87076  
 β-xylosidase (XlnD) 3.2.1.37 pubmed
 Aspergillus nidulans CAA73902.1 O42810
Q5BAS1		  
 β-glucosidase (AN1804.2) 3.2.1.21 pubmed
 Aspergillus nidulans FGSC A4 EAA64969.1 Q5BCC6  
 β-xylosidase (BxlB;AnXA;AN8401.2) 3.2.1.37 pubmed
 Aspergillus nidulans FGSC A4 EAA67023.1 Q5ATH9  
 β-xylosidase (BxlA;XlnD;AN2359.2) 3.2.1.37 pubmed
 Aspergillus nidulans FGSC A4 EAA64470.1 Q5BAS1 6Q7I[A,B]
6Q7J[A,B]
 β-glucosidase (AN0712.2) 3.2.1.21 pubmed
 Aspergillus nidulans FGSC A4 EAA65189.1
ABF50843.1		 Q5BFG8  
 β-glucosidase (AN2828) 3.2.1.21 pubmed
 Aspergillus nidulans FGSC A4 EAA63399.1 C8VJG1
Q5B9F2		  
 β-xylosidase, partial (fragment) 3.2.1.37 pubmed
 Aspergillus niger AHG30998.1   7XTJ[A,B]
 β-xylosidase (XlnD;AnXlnD;Asp n 14;P1.1) 3.2.1.37 pubmed
 Aspergillus niger 90196 AAD13106.1
CAW52630.1
CBC23888.1		 O00089
O93933		  
 β-glucosidase (P1.2) 3.2.1.21 pubmed
 Aspergillus niger ASKU28 AFW98805.1 K7WQK7  
 β-glucosidase 3.2.1.21 URL
 Aspergillus niger ATCC 10574 ANT73245.1 A0A1B1QDA2  
 β-glucosidase (Bgl1; BG3; BGs) 3.2.1.21 pubmed
 Aspergillus niger B1 CAB75696.1 Q9P8F4  
 β-glucosidase II 3.2.1.21   Aspergillus niger BCRC 31494 / AS3.4523 ACV91073.1    
 β-xylosidase (XlnD;AnXln3D) (Xln3D) 3.2.1.37 doi
 Aspergillus niger BE-2 AIC36733.1 A0A060IKI3  
 β-xylosidase (XlnD;Asp n 14;AnXlnD) 3.2.1.37 pubmed
 Aspergillus niger CBS 120.49 / NW147 AAQ80268.1
CAB06417.1
CAB59162.1
CAW52627.1
CBC23882.1		 O00089  
 β-xylosidase (XlnD;An01g09960) 3.2.1.37 pubmed
 Aspergillus niger CBS 513.88 CAK37179.1 A2QA27  
 β-glucosidase (Bgl1;An18g03570) 3.2.1.21 pubmed
 Aspergillus niger CBS 513.88 CAK48740.1 A2RAL4  
 β-glucosidase (Bgl1) 3.2.1.21 pubmed
 Aspergillus niger CGMCC 3.316 AFJ19133.1 I1Z9C3  
 β-xylosidase (XlnD) 3.2.1.37 doi
 Aspergillus niger GS1 ADD69953.1    
 β-glucosidase (Bgl1) 3.2.1.21 URL
 Aspergillus niger zju-2 ACJ02084.1 B6V747  
 β-glucosidase 1 (Bgl1) 3.2.1.21 pubmed
 Aspergillus niger ZJUBE-1 QAV54755.1 A0A481NXH0  
 β-glucosidase 2 (Bgl2) 3.2.1.21 pubmed
 Aspergillus niger ZJUBE-1 QAV54756.1 A0A481NXM9  
 β-glucosidase (Cel3) 3.2.1.21 pubmed
 Aspergillus oryzae CAD67686.1
AJI43741.1		 A0A1L1X0X9  
 β-xylosidase (XylA;Xyl-1) 3.2.1.37 pubmed
 Aspergillus oryzae KBN616 BAA28267.1
BAA24107.1
CAW52628.1
CAW52629.1
CBC23884.1
CBC23886.1		 O42698
O59862
Q2UR38		  
 β-glucosidase (B7;BglA;Bgl1;AobG;BGHG1;BglC;AO090009000356) (Cel3A) 3.2.1.21 pubmed
 Aspergillus oryzae RIB40 BAE54829.1 Q2UUD6 5FJJ[A,B,C,D]
 β-xylosidase (XylA;Xyl-1;AO090005000986) 3.2.1.37 pubmed
 Aspergillus oryzae RIB40 BAE55977.1 Q2UR38  
 β-glucosidase 5 (Bgl5;BglG;AO090001000544) 3.2.1.21 pubmed
 Aspergillus oryzae RIB40 BAE57053.1 Q2UN12  
 β-glucosidase 1 / aryl β-glucosidase (Bgl1;BglJ;AO090003001511) 3.2.1.21 pubmed
 Aspergillus oryzae RIB40 BAE58551.1 Q2UIR4  
 isoprimeverose-producing oligoxyloglucan hydrolase (IpeA; BglD; AO090701000274) 3.2.1.120 pubmed
 Aspergillus oryzae RIB40 BAE62006.1 Q2U8V9 5YOT[A,B]
5YQS[A,B]
7EAP[A]
 aryl β-glucosidase (BglA;AO090038000223) 3.2.1.21 pubmed
 Aspergillus oryzae RIB40 BAE64040.1 Q2U325  
 β-1,6-glucosidase (BglH;AO090038000425) 3.2.1.- pubmed
 Aspergillus oryzae RIB40 BAE64214.1 Q2U2K1  
 aryl β-glucosidase (BglF;AO090103000127) 3.2.1.21 pubmed
 Aspergillus oryzae RIB40 BAE65597.1 Q2TYS6  
 β-glucosidase (Bgl;BGL1) 3.2.1.21 pubmed
 Aspergillus saccharolyticus CBS 127449 AEL79685.1 G0X2F9  
 β-xylosidase (XlnD) 3.2.1.8 pubmed
 Aspergillus sp. BCC125 AGB57183.1 L0L918  
 β-glucosidase (BglS;ATEG_07931) 3.2.1.21 pubmed
 Aspergillus terreus NIH2624 EAU32193.1 Q0CEF3  
 β-1,4-xylosidase (XylI) 3.2.1.37 pubmed
 Aureobasidium melanogenum ATCC 20524 BAI82526.1 D4AHT5  
 β-glucosidase / avenacinase (Sap1) 3.2.1.21
3.2.1.-		 doi
doi
 Botrytis cinerea SAS56 CAB61489.1 Q9UVJ6  
 β-glucosidase 3.2.1.21 pubmed
 Brettanomyces bruxellensis YV397 AKS48905.1    
 β-glucosidase 1 (GH3BG1;CsGH3BG1) 3.2.1.21 pubmed
 Camellia sinensis ARU79079.1 A0A1Y0K2D5  
 β-glucosidase (D2-BGL) 3.2.1.21 pubmed
 Chaetomella raphigera 737 AID68373.1 A0A068FT77 6JXG[A]
 β-glucosidase (Cel3B; CEL3b) 3.2.1.21 pubmed
 Chaetomium atrobrunneum ANR02040.1 A0A1B1HX56  
 β-glucosidase (Cel3A; CEL3a) 3.2.1.21 pubmed
 Chaetomium atrobrunneum ANR02039.1 A0A1B1HX44  
 β-glucosidase (CHGG_03421) 3.2.1.21 pubmed
 Chaetomium globosum CBS 148.51 EAQ91486.1 Q2H8N3  
 β-glucosidase / β-xylosidase (Bxl5) 3.2.1.21 pubmed
 Chrysosporium lucknowense VKM F-3500-D / C1 AEN99939.1 G3FAQ7  
 β-glucosidase/ exo-β-1,3-glucosidase (Bgl2) 3.2.1.21
3.2.1.58		 pubmed
pubmed
 Coccidioides posadasii AAF21242.1 Q9UVC8  
 β-glucosidase (Bgl1) 3.2.1.21 pubmed
 Coccidioides posadasii C735 AAB67972.1 O14424  
 β-glucosidase (CC1G_08724) 3.2.1.21
3.2.1.58		 pubmed
pubmed
 Coprinopsis cinerea okayama7#130 EAU87688.2    
 β-glucosidase 3.2.1.21 pubmed
 Dictyostelium discoideum AX3 AAA74233.1 Q23892  
 β-glucosidase (Bgl3A) 3.2.1.21 pubmed
 Evansstolkia leycettana JCM12802 AMR94085.1 A0A1B0VFN7  
 β-xylosidase (Xyl1) 3.2.1.37 pubmed
 Fragaria x ananassa AAS17751.2
CAW96536.1
CAW96699.1
CAX01913.1
CAX07267.1
CBD30903.1		 Q6RXY3  
 avenacinase I 3.2.1.21
3.2.1.-		 pubmed
pubmed
 Gaeumannomyces graminis AAB09777.1 Q00903  
 β-1,6/1,3-glucosidase (GtGen3A) 3.2.1.58
3.2.1.-		 pubmed
pubmed
 Gentiana triflora BBB05245.1 A0A2Z5U4V7  
 β-glucosidase (Bgl;GmBGL) 3.2.1.21 pubmed
 Glycine max AIO11756.1 A0A0B4PJM3  
 β-xylosidase (XYL) 3.2.1.37 pubmed
 Hordeum vulgare AAK38482.1
CAW52643.1
CAW96538.1
CAW96701.1
CAX01915.1
CAX07269.1
CBC23916.1
CBD30905.1		 Q8W011  
 α-L-arabinofuranosidase / β-xylosidase (ARA-I) 3.2.1.37
3.2.1.55		 pubmed
pubmed
 Hordeum vulgare subsp. vulgare AAK38481.1
BAJ89945.1
CAW52644.1
CAW96539.1
CAW96702.1
CAX01916.1
CAX07270.1
CBC23918.1
CBD30906.1		 F2D4C4
Q8W012		  
 exo-β-1,3,1,4-glucanase II (ExoII) 3.2.1.- pubmed
 Hordeum vulgare subsp. vulgare AAC49170.1 Q42835  
 β-xylosidase (Xyl3A) 3.2.1.37 pubmed
 Humicola insolens Y1 / GCMCC 4573 AJK31203.1 A0A0C5AKM5  
 β-glucosidase I (Bgl1) 3.2.1.21 pubmed
 Hypocrea orientalis EU7-22 AFM77966.1 I6SJL7  
 β-glucosidase I (Bgl;KmBglI) 3.2.1.21 pubmed
 Kluyveromyces marxianus NBRC1777 ACY95404.1 D1GCC6 3ABZ[A,B,C,D]
3AC0[A,B,C,D]
 β-glucosidase (BglN) 3.2.1.21 pubmed
 Kuraishia capsulata 35M5N AAA91297.1 Q12653  
 β-xylosidase / β-glucosidase (Lxyl-p1-1) 3.2.1.21
3.2.1.37		 pubmed
pubmed
 Lentinula edodes M95.33 AET31457.1
AET31458.1		 G8GLN9  
 β-xylosidase / β-glucosidase (Lxyl-p1-2) (7-β-xylosyltaxane-active) 3.2.1.21
3.2.1.37		 pubmed
pubmed
 Lentinula edodes M95.33 AET31459.1
AET31460.1		 G8GLP2 6JBS[A,B,C,D]
6KJ0[A,B]
7EY1[A,B,C,D]
7EY2[A,B,C,D,E,F]
7F95[A,B,C,D]
7YO6[A,B]
7YO7[A,B]
8GYY[A,B,C,D]
 β-xylosidase / α-L-arabinosidase (Xyl1) 3.2.1.37
3.2.1.55		 pubmed
pubmed
 Medicago sativa subsp. x varia ABQ45227.1 A5JTQ2  
 β-glucosidase (HMPREF1544_06945) 3.2.1.21 pubmed
 Mucor circinelloides 1006PhL EPB86303.1 S2JU28  
 β-glucosidase 1 (Bgl1) 3.2.1.21 pubmed
 Mucor javanicus NBRC 4572 BAO00904.1 U3U8W9  
 β-glucosidase 2 (Bgl2) 3.2.1.21 pubmed
 Mucor javanicus NBRC 4572 BAO00905.1 U3U793  
 β-glucanase (W5-16143) 3.2.1.21 pubmed
 Neocallimastix patriciarum W5 AEX92706.1 H2BPT0  
 β-glucosidase (Bgs;NpaBGS) 3.2.1.21 pubmed
 Neocallimastix patriciarum W5 AFI47447.1 I6PFJ4  
 β-glucosidase (Bgl6; Gh3-3; NcGH3-3; NcCel3A; Ncrα-Bgl101; NCU08755) (Cel3A) 3.2.1.21 pubmed
 Neurospora crassa OR74A EAA26868.1
XP_330872.1
XP_956104.1		 Q7RWP2 5NBS[A,B]
 β-glucosidase (Bgl2;Gh3-4;NCU04952) 3.2.1.21 pubmed
 Neurospora crassa OR74A EAA30164.1
XP_324309.1		 Q7S3R5  
 β-xylosidase (Gh3-7;NCU09923) 3.2.1.37 pubmed
 Neurospora crassa OR74A CAB91343.2
CAW52623.1
CAW52647.1
CBC23874.1
CBC23924.1
XP_329671.1		 Q9P627  
 β-glucosidase (Bgl3; PtBglu3) 3.2.1.21 pubmed
 Paecilomyces sp. thermophila ADM47481.1 J9PDC5  
 β-glucosidase (Bgl1) 3.2.1.21 pubmed
 Penicillium brasilianum IBT 20888 ABP88968.1 A5A4M8  
 β-glucosidase I (Bgl1;BglI) 3.2.1.21 pubmed
 Penicillium decumbens 114-2 / JU-A10 ACD86466.1 B3GK87  
 β-glucosidase I (Bgl1;Dbgl1) 3.2.1.21 doi
 Penicillium decumbens CICC 40361 ADB82653.1 D3JUX2  
 β-glucosidase (Bgl4;PDE_01565) 3.2.1.21 pubmed
 Penicillium oxalicum 114-2 EPS26627.1 S8AXG8  
 β-glucosidase (BGL I) 3.2.1.21 pubmed
 Periconia sp. BCC 2871 ABX84365.1
AFH41575.1		 A9UIG0
H9ZXX1		  
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