Glycoside Hydrolase Family 20

Activities in Familyβ-hexosaminidase (EC; lacto-N-biosidase (EC; β-1,6-N-acetylglucosaminidase) (EC 3.2.1.-); β-6-SO3-N-acetylglucosaminidase (EC 3.2.1.-)
Mechanism Retaining
3D Structure Status( β / α ) 8
Catalytic Nucleophile/Basecarbonyl oxygen of C-2 acetamido group of substrate
Catalytic Proton DonorGlu
External resourcesCAZypedia; HOMSTRAD; PRINTS; Tay-Sachs Disease;
Commercial Enzyme Provider(s)MEGAZYME;
Statistics GenBank accession (4911); Uniprot accession (778); PDB accession (82); 3D entries (18); cryst (0)
All (4632) Archaea (4) Bacteria (4295) Eukaryota (321) Viruses (2) unclassified (10) Structure (18) Characterized (124)
| 1 | ... | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | ... | 43 |
Protein Name EC#OrganismGenBank UniprotPDB/3D
 BvMPK_0941   Bacteroides vulgatus mpk ALK83558.1    
 BvMPK_3796   Bacteroides vulgatus mpk ALK86356.1    
 BXY_13050   Bacteroides xylanisolvens XB1A CBK66445.1 D6CW93  
 BXY_13060   Bacteroides xylanisolvens XB1A CBK66446.1 D6CW94  
 BXY_17860   Bacteroides xylanisolvens XB1A CBK66887.1 D6CXI5  
 BXY_00700   Bacteroides xylanisolvens XB1A CBK65374.1 D6D4H2  
 BXY_09310   Bacteroides xylanisolvens XB1A CBK66096.1 D6D7V1  
 BXY_09320   Bacteroides xylanisolvens XB1A CBK66097.1 D6D7V2  
 BXY_23130   Bacteroides xylanisolvens XB1A CBK67381.1 D6CYX9  
 BXY_34510   Bacteroides xylanisolvens XB1A CBK68445.1 D6D1Z3  
 BXY_42670 (fragment)   Bacteroides xylanisolvens XB1A CBK69167.1 D6D415  
 BXY_46370   Bacteroides xylanisolvens XB1A CBK69499.1 D6D5A5  
 BXY_00700   Bacteroides xylanisolvens XB1A      
 BARVI_03050   Barnesiella viscericola DSM 18177 AHF11967.1    
 BARVI_04275   Barnesiella viscericola DSM 18177 AHF12132.1    
 BARVI_04280   Barnesiella viscericola DSM 18177 AHF12133.1    
 BARVI_08120   Barnesiella viscericola DSM 18177 AHF12728.1    
 Belba_3232   Belliella baltica DSM 15883 AFL85742.1    
 Belba_3266   Belliella baltica DSM 15883 AFL85776.1    
 BWI17_12230   Betaproteobacteria bacterium GR16-43 APV50395.1    
 Bcav_0947   Beutenbergia cavernae DSM 12333 ACQ79208.1 C5C022  
 Bcav_1293   Beutenbergia cavernae DSM 12333 ACQ79552.1 C5C1T4  
 Bcav_3043   Beutenbergia cavernae DSM 12333 ACQ81287.1 C5BZV7  
 AB656_02690   Bifidobacterium actinocoloniiforme DSM 22766 AKV55320.1    
 BBBF_0021   Bifidobacterium bifidum ATCC 29521 = JCM 1255 = DSM 20456 BAQ97228.1    
 BBBF_1434   Bifidobacterium bifidum ATCC 29521 = JCM 1255 = DSM 20456 BAQ98641.1    
 BBBF_1524   Bifidobacterium bifidum ATCC 29521 = JCM 1255 = DSM 20456 BAQ98731.1    
 BBBF_1004   Bifidobacterium bifidum ATCC 29521 = JCM 1255 = DSM 20456 BAQ98211.1    
 RY70_1064   Bifidobacterium bifidum BF3 ALE11422.1    
 RY70_1677   Bifidobacterium bifidum BF3 ALE12005.1    
 RY70_1576   Bifidobacterium bifidum BF3 ALE11910.1    
 RY70_75   Bifidobacterium bifidum BF3 ALE10463.1    
 BBB_0943 (Hex20)   Bifidobacterium bifidum BGN4 AFL04535.1    
 BBB_0024 (ChB)   Bifidobacterium bifidum BGN4 AFL03621.1    
 BBB_1512 (fragment)   Bifidobacterium bifidum BGN4 AFL05103.1    
 BBB_1414 (HexA)   Bifidobacterium bifidum BGN4 AFL05005.1    
 β-N-acetylhexosaminidase (BbhIII)   Bifidobacterium bifidum JCM 1254 BAI94829.1    
 lacto-N-triose II β-N-acetylhexosaminidase (BbhI) Bifidobacterium bifidum JCM 1254 BAI94822.1    
 β-N-acetylhexosaminidase (BbhII) Bifidobacterium bifidum JCM 1254 BAI94823.1    
 lacto-N-biosidase (LnbB) Bifidobacterium bifidum JCM 1254 ABZ78855.1 B3TLD6 4H04[A,B]
 BBJK_03032   Bifidobacterium bifidum LMG 13195 JCM 7004 BBA49032.1    
 BBJK_01451   Bifidobacterium bifidum LMG 13195 JCM 7004 BBA48002.1    
 BBJK_00630   Bifidobacterium bifidum LMG 13195 JCM 7004 BBA47460.1    
 BBJK_00776   Bifidobacterium bifidum LMG 13195 JCM 7004 BBA47560.1    
 BBPR_0026 (NagZ)   Bifidobacterium bifidum PRL2010 ADP35169.1 E4NXS1  
 BBPR_1018 (NagZ)   Bifidobacterium bifidum PRL2010 ADP36087.1 E4NX12  
 BBPR_1529 (NagZ)   Bifidobacterium bifidum PRL2010 ADP36558.1 E4NZ32  
 BBPR_1438   Bifidobacterium bifidum PRL2010 ADP36472.1 E4NYE5  
 BBIF_1382   Bifidobacterium bifidum S17 ADO53587.1 E3EQD1  
 BBIF_1476   Bifidobacterium bifidum S17 ADO53681.1 E3ERA6  
 BBIF_0963 (NagZ)   Bifidobacterium bifidum S17 ADO53168.1 E3EP61  
 BBIF_0023   Bifidobacterium bifidum S17 ADO52228.1 E3ENF0  
 BBTM_00486   Bifidobacterium bifidum TMC 3115 BBA55227.1    
 BBTM_01328   Bifidobacterium bifidum TMC 3115 BBA55782.1    
 BBTM_01844   Bifidobacterium bifidum TMC 3115 BBA56142.1    
 BBTM_01188   Bifidobacterium bifidum TMC 3115 BBA55685.1    
 lacto-N-biosidase (LnbB)   Bifidobacterium bifidum TMC3108 BBA57855.1    
 β-N-acetylhexosaminidase (BbhI)   Bifidobacterium bifidum TMC3108 BBA57859.1    
 BB017W439_1611   Bifidobacterium breve 017W439 AUD95907.1    
 BB082W48_1572   Bifidobacterium breve 082W48 AUD97792.1    
 B12L_1484   Bifidobacterium breve 12L AHJ16213.1    
 BB139W423_1674   Bifidobacterium breve 139W423 AUD99779.1    
 BB180W83_1578   Bifidobacterium breve 180W83 AUE01698.1    
 BB215W447A_1889   Bifidobacterium breve 215W447a AUE03892.1    
 B689b_1586   Bifidobacterium breve 689b AHJ23574.1    
 HMPREF9228_1607   Bifidobacterium breve ACS-071-V-Sch8b AEF27531.1    
 RY69_232   Bifidobacterium breve BR3 ALE12504.1    
 CNCMI4321_1765   Bifidobacterium breve CNCM I-4321 AUE05970.1    
 DRBB26_1666   Bifidobacterium breve DRBB26 AUD89785.1    
 DRBB27_1765   Bifidobacterium breve DRBB27 AUD91869.1    
 DRBB28_1792   Bifidobacterium breve DRBB28 AUD93969.1    
 DRBB29_1766   Bifidobacterium breve DRBB29 AUE19301.1    
 DRBB30_1764   Bifidobacterium breve DRBB30 AUE21393.1    
 BBBR_1555   Bifidobacterium breve DSM 20213 = JCM 1192 BAR00594.1    
 B7017_1750   Bifidobacterium breve JCM 7017 AHJ17988.1    
 B7019_1726   Bifidobacterium breve JCM 7019 AHJ19894.1    
 BBL520_08710   Bifidobacterium breve LMC520 AQM43607.1    
 B2258_1572   Bifidobacterium breve NCFB 2258 AHJ21750.1    
 NRBB04_1568 (fragment)   Bifidobacterium breve NRBB04 AUD71521.1    
 NRBB08_1545   Bifidobacterium breve NRBB08 AUE07846.1    
 NRBB18_1546   Bifidobacterium breve NRBB18 AUE09720.1    
 NRBB19_1549   Bifidobacterium breve NRBB19 AUE11598.1    
 NRBB20_1554   Bifidobacterium breve NRBB20 AUE13472.1    
 NRBB27_1545   Bifidobacterium breve NRBB27 AUE15344.1    
 NRBB49_1546   Bifidobacterium breve NRBB49 AUE17213.1    
 NRBB51_1631   Bifidobacterium breve NRBB51 AUD81715.1    
 NRBB52_1627   Bifidobacterium breve NRBB52 AUD83678.1    
 NRBB56_1637   Bifidobacterium breve NRBB56 AUD85662.1    
 NRBB57_1831   Bifidobacterium breve NRBB57 AUD87820.1    
 BS27_1539 (NagZ)   Bifidobacterium breve S27 AHJ25311.1    
 Bbr_1556 (NagZ)   Bifidobacterium breve UCC2003 ABE96227.1    
 BBKW_1886   Bifidobacterium kashiwanohense JCM 15439 = DSM 21854 BAQ30021.1    
 AH68_09645   Bifidobacterium kashiwanohense PV20-2 AIZ15248.1    
 BL105A_1347   Bifidobacterium longum 105-A BAP83971.1    
 B624_1267   Bifidobacterium longum 35624 AOL10721.1    
 BBG7_1461   Bifidobacterium longum BG7 ALE36649.1    
 GS08_07345   Bifidobacterium longum BXY01 AIF90923.1    
 BLD_0071 (ChB)   Bifidobacterium longum DJO10A ACD97517.1    
 BL0056   Bifidobacterium longum NCC2705 AAN23923.1
 SAMN04489749_0698   Bifidobacterium longum Su859 SDO41863.1    

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