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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
 isoprimeverose-producing oligoxyloglucan hydrolase (IPase) 3.2.1.120 doi
 Oerskovia sp. Y1 BAM08953.1 I0IUK4  
 β-glucosidase (Blg84; OaBgl84) 3.2.1.21 doi
 Olleya sp. DAU311 / Olleya aquimaris DAU311 AOW69135.1    
 β-glucosidase (PbBglu3) 3.2.1.21   Paenibacillus barengoltzii CAU904 APZ77041.1   5WUG[A]
5WVP[A]
 β-glucosidase (PstG;PSTG) 3.2.1.21 pubmed
 Paenibacillus relictisesami BAJ09393.1 D6RVX0  
 β-glucosidase (BglY) 3.2.1.21 pubmed
 Paenibacillus sp. C7 AAX35883.1 Q58PF3  
  β-N-acetylglucosaminidase (PsNagA) 3.2.1.52 pubmed
 Paenibacillus sp. FPU-7 BBK60996.1 A0A5S8WF56
A0A5S9I253		 6K5J[A]
 glucocerebrosidase 3.2.1.45 pubmed
 Paenibacillus sp. TS12 BAC16750.1 Q8GAT9  
 β-glucosidase (BglA) 3.2.1.21 pubmed
 Paenibacillus xylanilyticus KJ-03 AFC68969.1 H9A9K3  
 β-xylosidase 3A (JOP69_09875) (Xyl3A) 3.2.1.72
3.2.1.37		 pubmed
pubmed
 Polaribacter sp. Q13 QVY64086.1    
 β-N-acetylglucosaminidase A (Cht60) 3.2.1.52 pubmed
 Pseudoalteromonas piscicida O-7 BAA04223.1
I39596		 P48823  
 exo-1,3/1,4-β-glucanase (GluA; ExoP) 3.2.1.- pubmed
 Pseudoalteromonas sp. BB1 ABC88234.1 Q0QJA3 3F93[A,B,C,D]
3F94[A]
3RRX[A]
3USZ[A]
3UT0[A,B,C,D]
 β-N-acetylglucosaminidase (NagZ;PA3005) 3.2.1.52 pubmed
 Pseudomonas aeruginosa PAO1 AAG06393.1
NP_251695.1		 Q9HZK0 5G1M[A,B]
5G2M[A,B]
5G3R[A,B]
5G5K[A,B]
5G5U[A,B]
5G6T[A,B]
5LY7[A,B]
 β-glucosidase (BglX; PA1726) 3.2.1.58
3.2.1.-		 pubmed
pubmed
 Pseudomonas aeruginosa PAO1 AAG05115.1
NP_250417.1		 Q9I311 6R5I[A,B]
6R5N[A,B]
6R5O[A,B]
6R5P[A,B]
6R5R[A,B]
6R5T[A,B]
6R5U[A,B]
6R5V[A,B]
 β-glucosidase (BglPC28; BglG1537b) 3.2.1.21 pubmed
 Pseudonocardia sp. Gsoil1536 AGA60134.1 L0EKB3  
 β-glucosidase (BGL3T; Theth_1706) 3.2.1.21 doi
 Pseudothermotoga thermarum DSM 5069 AEH51751.1
WP_013932959.1
YP_004660847.1		    
 β-xylosidase (XynB3;Theth_0138) 3.2.1.37 pubmed
 Pseudothermotoga thermarum DSM 5069 AEH50242.1 F7YUQ7  
 β-glucosidase 3A (RmBgl3A; Rmar_0536) (Bgl3A) 3.2.1.21 pubmed
 Rhodothermus marinus DSM 4252 ACY47437.1 D0MEY7  
 β-N-acetyl-glucosaminidase 3 (RmNag3; Rmar_0925) 3.2.1.52 pubmed
 Rhodothermus marinus DSM 4252 ACY47819.1 D0MH34  
 β-xylosidase 3A (RmXyl3A; Rmar_1080) 3.2.1.37 pubmed
 Rhodothermus marinus DSM 4252 ACY47972.1 D0MHL4  
 β-xylosidase 3B (RmXyl3B; Rmar_1081) (Xyl3B) 3.2.1.37 pubmed
 Rhodothermus marinus DSM 4252 ACY47973.1 D0MHL5  
 β-glucosidase 3B (RmBgl3B; Rmar_2069) (Bgl3B) 3.2.1.21 pubmed
 Rhodothermus marinus DSM 4252 ACY48950.1 D0MD38  
 β-glucosidase 3C (RmBgl3C; Rmar_2616) (Bgl3C) 3.2.1.21 pubmed
 Rhodothermus marinus DSM 4252 ACY49489.1 D0MG00  
 β-N-acetylhexosaminidase (RRR_05655) 3.2.1.52 pubmed
 Rickettsia rickettsii str. R AJG33435.1    
 xylan β-1,4-xylosidase (RiXyl3A;ROSINTL182_08202) (Xyl3A) 3.2.1.37 pubmed
 Roseburia intestinalis L1-82 EEU99897.1 C7GE50  
 β-glucosidase (RiGH3B; RIL182_00213; ROSINTL182_07684; Bglb_2) 3.2.1.21 pubmed
 Roseburia intestinalis L1-82 VCV20358.1
EEV00398.1		 C7GCP6  
 β-glucosidase (RiGH3A; RIL182_00212; ROSINTL182_07685; Bglb_1) 3.2.1.21 pubmed
 Roseburia intestinalis L1-82 VCV20357.1
EEV00399.1		 C7GCP7  
 β-glucosidase 3A (Ccel_2454) (Glu3A) 3.2.1.21 pubmed
 Ruminiclostridium cellulolyticum H10 ACL76783.1 B8I618  
 β-glucosidase (GluA) 3.2.1.21 URL
 Ruminococcus albus 7 AAC05445.1 O66050  
 β-xylosidase 3A (Xyl3A) 3.2.1.37 pubmed
 Ruminococcus albus 8 AEE64772.1 F6LP84  
 β-1,3-glucosidase (Ra1595;CUS_7631) 3.2.1.58 pubmed
 Ruminococcus albus 8 EGC01435.1 E9SHA3  
 β-glucosidase (Bgl) 3.2.1.21 pubmed
 Ruminococcus albus ATCC27210 CAA33461.1 P15885  
 β-glucosidase / cellodextrinase 3B (Sde_0245) (Ced3B) 3.2.1.21
3.2.1.74		 pubmed
pubmed
 Saccharophagus degradans 2-40 ABD79509.1 Q21P70  
 β-glucosidase / cellodextrinase 3A (CedA;Sde_2497) (Ced3A) 3.2.1.21
3.2.1.74		 pubmed
pubmed
 Saccharophagus degradans 2-40 ABD81757.1 Q21HS2  
 β-glucosidase 3C (Sde_2674) (Bgl3C) 3.2.1.21 pubmed
 Saccharophagus degradans 2-40 ABD81934.1 Q21H95  
 erythromycin β-glucosidase (EryBI;SACE_0732) 3.2.1.21 pubmed
 Saccharopolyspora erythraea NRRL 2338 CAA74702.1
CAM00073.1		 A4F7P9
O70021		  
 β-N-acetylglucosaminidase (NagZ; StNagZ; STM1209) 3.2.1.52 pubmed
 Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 AAL20138.1
NP_460179.1		 Q8ZQ06 4GVF[A,B]
4GVG[A,B]
4GVH[A,B]
4GVI[A,B]
4HZM[A,B]
 β-glucosidase (BglSk;Sked_04360) 3.2.1.21 pubmed
 Sanguibacter keddieii DSM 10542 ACZ20402.1 D1BKC5  
 exo-β-1,4-glucosidase (CdxA;Orf0348;PBR_0352;00348-GPBOY) 3.2.1.21
3.2.1.74		 pubmed
pubmed
 Segatella baroniae B14 AAA86753.2
AAA86753.1		 Q59716  
 β-xylosidase (Xyl3A;Orf00398;PBR_0403;00398-GPBOY) (Xyl3A) 3.2.1.37 pubmed
 Segatella baroniae B14 ADD92014.1 D5KJA3  
 β-xylosidase (Xyl3B;Orf0911;PBR_0906;00911-GPBOY) (Xyl3B) 3.2.1.37 pubmed
 Segatella baroniae B14 ADD92015.1 D5KJA4  
 β-xylosidase (Xyl3C;Orf0975;PBR_0972;00975-GPBOY) (Xyl3C) 3.2.1.37 pubmed
 Segatella baroniae B14 ADD92016.1 D5KJA5  
 β-glucosidase (BglA49) 3.2.1.21 pubmed
 Serratia sp. TN49 ADK91094.1 G0TEQ0  
 β-N-acetylhexosaminidase (Nag3HWLB1; NagGH3) 3.2.1.52 pubmed
 Sphingobacterium sp. HWLB1 AME17642.1 A0A1S5QJY2  
 endo-β-1,3(4)-glucanase (STHERM_c13940) 3.2.1.6 pubmed
 Spirochaeta thermophila DSM 6192 ADN02334.1 E0RUB3  
 oleandomycin β-glycosidase (OleR) 3.2.1.21 pubmed
 Streptomyces antibioticus ATCC 11891 AAC12650.1 O68843  
 β-N-acetylhexosaminidase (NagA;SCO2758) 3.2.1.52 pubmed
 Streptomyces coelicolor A3(2) CAB66297.1
NP_626989.1		 Q9RDG9  
 β-N-acetylglucosaminidase (DasD;SCO5235) 3.2.1.52 pubmed
 Streptomyces coelicolor A3(2) CAB94620.1
NP_629382.1		 Q9K488  
 coniferin β-glucosidase (BcpE2; SCAB_64101) 3.2.1.126 pubmed
 Streptomyces scabiei 87.22 CBG73416.1 C9ZDY4 7PJJ[A]
 β-xylosidase (Bxl2) 3.2.1.37 doi
 Streptomyces sp. CH7 AAO42605.1 Q7X508  
 β-N-acetylglucosaminidase II (NagA) 3.2.1.52 pubmed
 Streptomyces thermoviolaceus OPC-520 BAA32403.1 O82840  
 β-xylosidase (BxlA) 3.2.1.37 pubmed
 Streptomyces thermoviolaceus OPC-520 BAB61064.1
BAD02389.1		 Q76BU6 cryst
 macrolide β-glycosidase / β-glucosidase (DesR) 3.2.1.21 pubmed
 Streptomyces venezuelae ACR54627.1
AAC68679.1
AAO96653.1
AAO98875.1
AAY77317.1		 C5IXN7
Q9ZGH5		 4I3G[A,B]
 β-N-acetylhexosaminidase (NahA; STH300) 3.2.1.52 doi
 Symbiobacterium thermophilum IAM 14863 BAD39285.1 Q67SQ8  
 3-O-β-glucopyranosyl-specific ginsenosidase type III / β-glycosidase (BgpA;Bgl-gyp 3082) 3.2.1.21
3.2.1.38		 pubmed
pubmed
 Terrabacter ginsenosidimutans ACZ66247.2
ACZ66247.1		 D2KAT1  
 β-xylosidase / α-L-arabinofuranosidase (XarB) 3.2.1.37
3.2.1.55		 pubmed
pubmed
 Thermoanaerobacter ethanolicus JW 200 AAF43783.1
AAB23220.1		 Q9JRQ1  
 cellodextrinase D (BglA;Ggh-A) 3.2.1.74 pubmed
 Thermobispora bispora NRRL 15568 AAB36835.1 Q59506  
 β-xylosidase B (BxlB) (Bxl3B) 3.2.1.37 pubmed
 Thermoclostridium stercorarium NCIMB 11745 CAD48309.1 Q8GJ42  
 β-glucosidase Z (BglZ) (Bgl3Z) 3.2.1.21 pubmed
 Thermoclostridium stercorarium NCIMB 11754 CAB08072.1 O08331  
 β-xylosidase 3B (Bxl3B; BxlB; Cst_c02510) 3.2.1.37 pubmed
 Thermoclostridium stercorarium subsp. stercorarium DSM 8532 AGI38341.1
AGC67275.1		 L7VH08  
 β-glucosidase 3Z (Bgl3Z; BglZ; Cst_c03130) 3.2.1.21 pubmed
 Thermoclostridium stercorarium subsp. stercorarium DSM 8532 AGC67337.1
AGI38398.1		 L7VKQ9  
 β-N-acetylglucosaminidase 3A (Nag3A; Cst_c13470) 3.2.1.52 pubmed
 Thermoclostridium stercorarium subsp. stercorarium DSM 8532 AGI39362.1
AGC68338.1		 L7VRZ1  
 β-glucosidase B (BglB;TM0025) (Cel3) 3.2.1.21 doi
 Thermotoga maritima MSB8 AAD35119.1
AAM56786.1
AGL48948.1
AHD18204.1
AKE27834.1
CAH68687.1
CAT81443.1
NP_227841.1		 Q9WXN2
R4NZC1		  
 β-xylosidase (XloA;TM0076) (Xyl3) 3.2.1.37 pubmed
 Thermotoga maritima MSB8 AAD35170.1
AGL48999.1
AHD18154.1
AKE27884.1
NP_227892.1		 Q9WXT1
R4NX63		 7ZB3[A,B]
7ZDY[A,B]
7ZEQ[A,B]
7ZGZ[A,B]
8C7F[A,B]
 β-N-acetylglucosaminidase (NagA;TM0809) 3.2.1.52 pubmed
 Thermotoga maritima MSB8 AAD35891.1
AGL49735.1
AHD17438.1
AKE28590.1
NP_228618.1		 B6DVV2
G4FD15
Q9WZR6		 3WO8[A,B]
 β-glucosidase B (BglB;TnBgl3B;CTN_0670) (Bgl3B) 3.2.1.21 pubmed
 Thermotoga neapolitana DSM 4359 ABI29899.1
ACM22846.1		 B9K7B3
Q0GC07		 2WT3[A]
2WT5[A]
2WT6[A]
2X40[A]
2X41[A]
2X42[A]
 β-N-acetylglucosaminidase (CbsA) 3.2.1.52 pubmed
 Thermotoga neapolitana KCCM41025 AAK16587.1 Q9AG27 5BZA[A,B,C,D]
5C0Q[A,B,C,D]
 β-glucosidase B / laminaribiase (BglB) 3.2.1.21
3.2.1.58		 pubmed
pubmed
 Thermotoga neapolitana Z2706-MC24 CAB01407.1 Q60038 cryst
 β-xylosidase (TpeXyl3 ; Tpet_0848) 3.2.1.37 pubmed
 Thermotoga petrophila RKU-1 ABQ46867.1 A5IKZ4  
 β-glucosidase (BG-B;TCel11;TpBlg3;Tpet_0898) 3.2.1.21 pubmed
 Thermotoga petrophila RKU-1 ABQ46916.1 A5IL43  
 β-glucosidase (Thglu3) 3.2.1.21 pubmed
 Thermotoga sp. Ku-13t WP_165276387.1
KAF2957350.1		    
 exo-chitosanase (Cho) 3.2.1.132 pubmed
 Trichormus fertilissimus RPAN1 ACV53814.1 C9D7S2  
 β-glucoside phosphorylase (BglP) 3.2.1.21
2.4.1.-		 pubmed
pubmed
 uncultured bacterium AUG44408.1
AUG44422.1		 A0A2H4ZRM6
A0A2R2JFS5		 5VQD[A]
5VQE[A]
 β-glucosidase (Bgl2;BGL4A6-ORF17) 3.2.1.21 pubmed
 uncultured bacterium AEV59721.1 G9BYA2  
 β-glucosidase (Bgl1;BGL02B4-ORF21) 3.2.1.21 pubmed
 uncultured bacterium AEV59720.1 G9BYA1  
 β-glucosidase (UmBgl3B;RG2) 3.2.1.21 pubmed
 uncultured bacterium ABA42186.1 Q3HXC2  
 β-glucosidase (UmBgl3C;RG3) 3.2.1.21 pubmed
 uncultured bacterium ABA42187.1 Q3HXC1  
 β-glucosidase (BGL5;Bgl7O16) 3.2.1.21 pubmed
 uncultured bacterium AFH08277.1 H9XVR0  
 β-glucosidase (BGL7;Bgl9) 3.2.1.21 pubmed
 uncultured bacterium AFH08279.1 H9XVR2  
 β-glucosidase (BGL9;Bgl11) 3.2.1.21 pubmed
 uncultured bacterium AFH08281.1 H9XVR4  
 β-glucosidase (UmBgl3D) 3.2.1.21 pubmed
 uncultured bacterium ABE60716.1 Q1PDD6  
 β-glucosidase (RG11) 3.2.1.21 pubmed
 uncultured bacterium ABI94087.1 Q06B36  
 β-glucosidase (RG12) 3.2.1.21 pubmed
 uncultured bacterium ABI94088.1 Q06B35  
 β-glucosidase (RG14) 3.2.1.21 pubmed
 uncultured bacterium ABI94089.1 Q06B34  
 β-glucosidase (RG20) 3.2.1.21 pubmed
 uncultured bacterium ABI94090.1 Q06B33  
 β-glucosidase (RG25) 3.2.1.21 pubmed
 uncultured bacterium ABI94091.1 Q06B32  
 β-glucosidase (AS-Esc6) 3.2.1.21 pubmed
 uncultured bacterium AHG23300.1 W0LMV0  
 β-glucosidase (AmBGL17) 3.2.1.21 pubmed
 uncultured bacterium AHI85741.1 W6CGK7  
 β-glucosidase (AS-Esc17) 3.2.1.21 pubmed
 uncultured bacterium AIF34069.1 A0A075J216  
 β-glucosidase (A1_GH3) 3.2.1.21 pubmed
 uncultured bacterium A1_9 AEW47937.1 G9IS15  
 β-glucosidase 3.2.1.21 pubmed
 uncultured bacterium Contig178 AHF25279.1 W0FP77  
 β-glucosidase (D1_GH3) 3.2.1.21 pubmed
 uncultured bacterium D1_14 AEW47953.1 G9IS30  
 β-glucosidase (H1_GH3) 3.2.1.21 pubmed
 uncultured bacterium H1_5 AEW47970.1 G9IS47  
 β-glucosidase (LAB20g4) 3.2.1.21 pubmed
 uncultured bacterium LAB20 AGH13484.1 M4Q7P2  
 glucan β-1,4-glucosidase (LAB25g2) 3.2.1.21 pubmed
 uncultured bacterium LAB25 AGH13451.1 M4Q070  
 β-glucosidase (SRF2g14) 3.2.1.21 pubmed
 uncultured bacterium SRF2 AGH13471.1 M4Q086  
 glucan 1,4-β-glucosidase (SRF2g18) 3.2.1.21 pubmed
 uncultured bacterium SRF2 AGH13475.1 M4PZB2  
 β-glucosidase/β-xylosidase (Bgx1;RuBGX1) 3.2.1.21
3.2.1.37		 pubmed
pubmed
 uncultured rumen bacterium ADD17009.1 D3VYD8  
 β-glucosidase/β-xylosidase (RuBg3B;Bgx3;RuBbgX3;3F8) 3.2.1.21
3.2.1.37		 pubmed
pubmed
 uncultured rumen bacterium ADM89626.1 G3BJX4  
 β-glucosidase/β-xylosidase (RuBg3A;BgX2;RubgX2;16C12) 3.2.1.21
3.2.1.37		 pubmed
pubmed
 uncultured rumen bacterium ADM89625.1 G3BJX3  
 β-xylosidase (XynA;R13) (Xyl3A) 3.2.1.37 pubmed
 uncultured rumen bacterium CAP07659.1 A8E1A9  
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