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 (4615); Uniprot accession (779); PDB accession (79); 3D entries (18); cryst (1)
All (4333) Archaea (4) Bacteria (4008) Eukaryota (310) Viruses (1) unclassified (10) Structure (18 - 1 cryst) Characterized (124)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 41 |
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D
 A0U92_03840   Acetobacter aceti TMW2.1153 AQS86241.1    
 AGA_2505   Acetobacter ghanensis LMG 23848T CEF57190.1    
 APA386B_1916   Acetobacter pasteurianus 386B CCT59979.1    
 DB34_06070   Acetobacter pasteurianus Ab3 AKR48539.1    
 CBI36_02470   Acetobacter pasteurianus dm ASL39423.1    
 APA01_04270   Acetobacter pasteurianus IFO 3283-01 BAH98578.1 C7JCX5  
 APA42C_04270   Acetobacter pasteurianus IFO 3283-01-42C BAI16866.1 C7KXW2  
 APA03_04270   Acetobacter pasteurianus IFO 3283-03 BAI01629.1 C7JKK2  
 APA07_04270   Acetobacter pasteurianus IFO 3283-07 BAI04677.1 C7JUS0  
 APA12_04270   Acetobacter pasteurianus IFO 3283-12 BAI19850.1 C7L7N6  
 APA22_04270   Acetobacter pasteurianus IFO 3283-22 BAI07724.1 C7K512  
 APA26_04270   Acetobacter pasteurianus IFO 3283-26 BAI10772.1 C7KE81  
 APA32_04270   Acetobacter pasteurianus IFO 3283-32 BAI13820.1 C7KNJ7  
 APT_00395   Acetobacter pasteurianus NBRC 101655 BAU37477.1    
 A4S02_10035   Acetobacter pasteurianus subsp. ascendens LMG 1590 AOW47043.1    
 S101447_00747   Acetobacter pasteurianus subsp. ascendens SRCM101447 ARW09849.1    
 A4R89_01525   Acetobacter pasteurianus subsp. paradoxus LMG 1591 AOW48298.1    
 S101468_00827   Acetobacter pasteurianus subsp. pasteurianus SRCM101468 ASC05094.1    
 A0U91_06130   Acetobacter persici TMW2.1084 AQT06008.1    
 CPF11_05140   Acetobacter pomorum BDGP5 ATI11898.1    
 ASN_1109   Acetobacter senegalensis 108B CEF40490.1    
 WG31_02610   Acetobacter sp. SLV-7 ANA13036.1    
 CIW82_06345   Acetobacter tropicalis BDGP1 ATJ92465.1    
 BN85304020   Acholeplasma brassicae O502 CCV65423.1    
 BN85304090   Acholeplasma brassicae O502 CCV65430.1    
 ACL_1195   Acholeplasma laidlawii PG-8A ABX81794.1 A9NHG4  
 Aocu_03000   Acholeplasma oculi CDR30373.1    
 PACID_33320   Acidipropionibacterium acidipropionici ATCC 4875 AFV91090.1    
 AXH35_09545   Acidipropionibacterium acidipropionici ATCC 55737 AMS05656.1    
 ASQ49_05555   Acidipropionibacterium acidipropionici CGMCC 1.2230 ALN14834.1    
 A8L58_10985   Acidipropionibacterium acidipropionici F3E8 AOZ47125.1    
 BWX38_09370   Acidipropionibacterium acidipropionici WSH1105 APZ09413.1    
 ACP_0036   Acidobacterium capsulatum ATCC 51196 ACO32430.1 C1F7Z3  
 ACP_0029   Acidobacterium capsulatum ATCC 51196 ACO33864.1 C1F7Y6  
 β-hexosaminidase (NahA)   Acidomonas methanolica MB58 BAN85813.1    
 Acel_0072   Acidothermus cellulolyticus 11B ABK51848.1 A0LQY8  
 AHOG_17820   Actinoalloteichus hoggarensis DSM 45943 ASO21189.1    
 TL08_16755   Actinoalloteichus hymeniacidonis HPA177(T) (=DSM 45092(T)) AOS64151.1    
 UA74_19850   Actinoalloteichus sp. ADI127-7 APU15995.1    
 UA75_20345   Actinoalloteichus sp. GBA129-24 APU22058.1    
 ACEE_06000   Actinobacillus equuli subsp. equuli 19392 AIZ79332.1    
 dispersin B / β-1,6-N-acetylglucosaminidase (DspB) 3.2.1.- Actinobacillus pleuropneumoniae IA1 AAT46094.1 Q6GYA5  
 CHY23_00104 (StrH)   Actinobacillus pleuropneumoniae KL 16 ASU14921.1    
 APJL_1110   Actinobacillus pleuropneumoniae serovar 3 str. JL03 ABY69666.1 B0BQ31  
 APL_1096   Actinobacillus pleuropneumoniae serovar 5b str. L20 ABN74188.1 A3N1A2  
 APP7_1152   Actinobacillus pleuropneumoniae serovar 7 str. AP76 ACE61804.1 B3H1X7  
 MIDG2331_01132 (DspB)   Actinobacillus pleuropneumoniae serovar 8 CUU52415.1    
 Asuc_0859   Actinobacillus succinogenes 130Z ABR74229.1 A6VMN2  
 ASU1_05870   Actinobacillus suis ATCC 33415 AIJ31437.1    
 ASU2_05800   Actinobacillus suis H91-0380 AFU19298.1    
 SAMEA4504061_01223 (DspB)   Actinobacillus suis NCTC12996 SNV32878.1    
 ADJ76_01185   Actinomyces meyeri W712 AKU65851.1    
 SAMN04489714_0988   Actinomyces radingae DSM 9169 SDT92941.1    
 BK816_07340   Actinomyces sp. VUL4_3 AOZ73127.1    
 BK816_07350   Actinomyces sp. VUL4_3 AOZ73129.1    
 BK816_01550   Actinomyces sp. VUL4_3 AOZ72141.1    
 BK816_06125 (fragment)   Actinomyces sp. VUL4_3 AOZ72921.1    
 SAMN04489716_8846   Actinoplanes derwentensis DSM 43941 SDT79580.1    
 SAMN04489716_5686   Actinoplanes derwentensis DSM 43941 SDT68863.1    
 SAMN04489716_7230   Actinoplanes derwentensis DSM 43941 SDT75210.1    
 AFR_06925   Actinoplanes friuliensis DSM 7358 AGZ39674.1    
 AFR_30860   Actinoplanes friuliensis DSM 7358 AGZ44432.1    
 AFR_41770   Actinoplanes friuliensis DSM 7358 AGZ46608.1    
 AMIS_62470   Actinoplanes missouriensis 431 BAL91467.1    
 AMIS_10200   Actinoplanes missouriensis 431 BAL86240.1    
 L083_1360   Actinoplanes sp. N902-109 AGL14870.1    
 L083_4909   Actinoplanes sp. N902-109 AGL18419.1    
 L083_7917 (NahA)   Actinoplanes sp. N902-109 AGL21427.1    
 L083_2751   Actinoplanes sp. N902-109 AGL16261.1    
 ACPL_1243 (HexA)   Actinoplanes sp. SE50/110 AEV82140.1
SLL97945.1
   
 ACPL_4973 (HexA)   Actinoplanes sp. SE50/110 AEV85862.1
SLM01668.1
   
 ACPL_6508 (NahA)   Actinoplanes sp. SE50/110 AEV87390.1
SLM03205.1
   
 SAMN04489717_3535   Actinopolymorpha singaporensis DSM 22024 SDS69010.1    
 SAMN04489717_0347   Actinopolymorpha singaporensis DSM 22024 SDR74075.1    
 CDG81_09160   Actinopolyspora erythraea YIM 90600 ASU78421.1    
 CDG81_09805   Actinopolyspora erythraea YIM 90600 ASU78528.1    
 Amir_0449   Actinosynnema mirum DSM 43827 ACU34416.1 C6WHW5  
 Amir_1091   Actinosynnema mirum DSM 43827 ACU35047.1 C6WPZ1  
 CNX65_05485   Actinosynnema pretiosum X47 ATE52801.1    
 CNX65_02280   Actinosynnema pretiosum X47 ATE52266.1    
 Aeqsu_1088   Aequorivita sublithincola DSM 14238 AFL80586.1    
 BOQ57_07395   Aeromonas aquatica MX16A APJ14758.1    
 BOQ57_15885   Aeromonas aquatica MX16A APJ16317.1    
 chitobiase (NagA1) 3.2.1.52 Aeromonas caviae CB101 CAH55822.1 Q659J9  
 chitobiase (NagA1) (fragment)   Aeromonas caviae CB101 CAI79312.1 Q571P0  
 CK627_10260   Aeromonas dhakensis KN-Mc-6U21 ASX11137.1    
 CK627_18440   Aeromonas dhakensis KN-Mc-6U21 ASX12622.1    
 chitobiase 3.2.1.52 Aeromonas hydrophila AAG28494.1 Q9F9B4  
 AH4AK4_1371   Aeromonas hydrophila 4AK4 AHE48832.1    
 AH4AK4_1232   Aeromonas hydrophila 4AK4 AHE48693.1    
 VU14_14920   Aeromonas hydrophila AH10 AKA18079.1    
 VU14_06165   Aeromonas hydrophila AH10 AKA16474.1    
 TK34_14545   Aeromonas hydrophila AHNIH1 ANT68580.1    
 TK34_15680   Aeromonas hydrophila AHNIH1 ANT68786.1    
 RY45_08310   Aeromonas hydrophila AL06-06 AJQ54084.1    
 RY45_15995   Aeromonas hydrophila AL06-06 AJQ55513.1    
 V428_08715   Aeromonas hydrophila AL09-71 AHX32168.1    
 V428_17275   Aeromonas hydrophila AL09-71 AHX33740.1    
 AhyD4_06140   Aeromonas hydrophila D4 ALZ79194.1    
 AhyD4_14820   Aeromonas hydrophila D4 ALZ80803.1    
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