Glycoside Hydrolase Family 20

Activities in Familyβ-hexosaminidase (EC 3.2.1.52); lacto-N-biosidase (EC 3.2.1.140); β-1,6-N-acetylglucosaminidase (EC 3.2.1.-); β-6-SO3-N-acetylglucosaminidase (EC 3.2.1.-)
Mechanism Retaining
ClanGH-K
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 (6793); Uniprot accession (778); PDB accession (89); 3D entries (21); cryst (0)
All (6584) Archaea (4) Bacteria (6156) Eukaryota (356) Viruses (2) unclassified (66) Structure (21) Characterized (130)
unclassified
Protein Name EC#OrganismGenBank UniprotPDB/3D
 GH20, Betα-hexosaminidase   uncultured organism VDS02511.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02583.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02713.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02509.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02456.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02579.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02715.1    
 CG20, Betα-hexosaminidase   uncultured organism VDS02538.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02700.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02534.1    
 GH20, Betα-hexosaminidase   uncultured organism VDS02709.1    
 ORF   uncultured organism AGU10258.1    
 ORF   uncultured organism AGU10321.1    
 ORF   uncultured organism AGU11377.1    
 ORF   uncultured organism AGU12191.1    
 ORF   uncultured organism AGU10374.1    
 ORF (fragment)   uncultured prokaryote CRY94531.1    
 ORF (fragment)   uncultured prokaryote CRY96086.1    
 ORF (fragment)   uncultured prokaryote CRY95831.1    
 ORF (fragment)   uncultured prokaryote CRY95832.1    
 ORF   uncultured prokaryote CRY94532.1    
 EKD16_06970   Streptomonospora sp. M2 QBI53190.1    
 MG068_17750   Stenotrophomonas sp. ASS1 QBL42260.1    
 E1750_10355   Flavobacterium sp. GS13 QBN19185.1    
 E1750_00860   Flavobacterium sp. GS13 QBN17406.1    
 E1750_13245   Flavobacterium sp. GS13 QBN19727.1    
 EYD13_18130   Saccharomonospora sp. 31sw QBQ61968.1    
 E3D81_14445   Sphingobacterium sp. CZ-2 QBR13301.1    
 E3D81_08735   Sphingobacterium sp. CZ-2 QBR12242.1    
 E3D81_15090   Sphingobacterium sp. CZ-2 QBR13427.1    
 E3D81_09365   Sphingobacterium sp. CZ-2 QBR12355.1    
 E3Z29_07105   Pseudomonas sp. S150 QBR30326.1    
 E2F51_13635   Erwinia sp. QL-Z3 QBR50951.1    
 KTC_08720   Thermosporothrix sp. COM3 BBH86121.1    
 KTC_21420   Thermosporothrix sp. COM3 BBH87391.1    
 E2F51_04210   Erwinia sp. QL-Z3 QBR49246.1    
 DAIF1_35480   Stenotrophomonas sp. DAIF1 QBR45961.1    
 E4K62_16635   Microbacterium sp. dk512 QBR90799.1    
 E4K62_04240   Microbacterium sp. dk512 QBR87973.1    
 E2K93_13985   Thalassotalea sp. HSM 34 QBY05411.1    
 E5N77_14235   Streptomyces sp. SS52 QCB22852.1    
 E5N77_13490   Streptomyces sp. SS52 QCB22729.1    
 E5N77_22430   Streptomyces sp. SS52 QCB27098.1    
 E5673_07990   Sphingomonas sp. PAMC26645 QCB42174.1    
 E5554_14135   Sphingobium sp. PAMC28499 QCB38869.1    
 E5790_13140   Stenotrophomonas sp. PAMC25021 QCB34575.1    
 E5225_13800   Cellulomonas sp. Z28 QCB94468.1    
 E5225_01240   Cellulomonas sp. Z28 QCB95098.1    
 E5675_06820   Sphingopyxis sp. PAMC25046 QCB56873.1    
 E5139_10660   Halomicrobium sp. ZP60 QCD66078.1    
 FA707_04045   Vagococcus sp. MN-17 QCI86183.1    
 FCS00_09440   Elizabethkingia sp. 2-6 QCO46587.1    
 FCS00_01965   Elizabethkingia sp. 2-6 QCO45194.1    
 FCS00_04340   Elizabethkingia sp. 2-6 QCO45636.1    
 FCS00_18835   Elizabethkingia sp. 2-6 QCO48321.1    
 FCN45_02630   Pantoea sp. SO10 QCP58346.1    
 FCN45_12695   Pantoea sp. SO10 QCP60185.1    
 ECC18A13_004670   Enterobacter sp. 18A13 BBJ65902.1    
 EHF32_00420   Microbacterium sp. RG1 QCQ15314.1    
 C1N80_05590   Brachybacterium sp. SGAir0954 QCR53105.1    
 C1N53_02565   Pontibacter sp. SGAir0037 QCR21337.1    
 C1N53_06170   Pontibacter sp. SGAir0037 QCR21960.1    
 FEM41_02620   Izhakiella sp. KSNA2 QCT18615.1    
 FEM41_23675   Izhakiella sp. KSNA2 QCT22431.1    
 FE005_06395   Enterococcus sp. M190262 QCT91588.1    
 FE005_06380   Enterococcus sp. M190262 QCT91585.1    
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