Glycoside Hydrolase Family 18

Activities in Familychitinase (EC; lysozyme (EC; endo-β-N-acetylglucosaminidase (EC; peptidoglycan hydrolase with endo-β-N-acetylglucosaminidase specificity (EC 3.2.1.-); Nod factor hydrolase (EC 3.2.1.-); xylanase inhibitor; concanavalin B; narbonin
Mechanism Retaining
3D Structure Status( β / α ) 8
Catalytic Nucleophile/Basecarbonyl oxygen of C-2 acetamido group of substrate
Catalytic Proton DonorGlu (experimental)
NoteContains chitinases of classes III and V. Contains non-catalytic proteins such as xylanase inhibitor; concanavalin B; narbonin
External resourcesCAZypedia; HOMSTRAD; PROSITE;
Commercial Enzyme Provider(s)NZYTech; PROZOMIX;
Statistics GenBank accession (15224); Uniprot accession (3282); PDB accession (305); 3D entries (78); cryst (4)
All (13681) Archaea (61) Bacteria (9970) Eukaryota (3157) Viruses (256) unclassified (237) Structure (78 - 4 cryst) Characterized (477)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 100 |
Protein Name EC#OrganismGenBank UniprotPDB/3D
 ChiA (ChiA) (fragment)   Aeromonas veronii bv. veronii ATCC 35624 ADZ06067.1    
 A6033_08285   Aeromonas veronii CB51 ANB68605.1    
 A6033_08335   Aeromonas veronii CB51 ANB68608.1    
 A6033_08290   Aeromonas veronii CB51 ANB70722.1    
 A6033_04025   Aeromonas veronii CB51 ANB67897.1    
 AMS64_00725   Aeromonas veronii TH0426 AMQ41023.1    
 AMS64_05920   Aeromonas veronii TH0426 AMQ41954.1    
 AMS64_05930   Aeromonas veronii TH0426 AMQ41956.1    
 CVS41_04815   Aeromonas veronii X11 ATY76510.1    
 CVS41_04825   Aeromonas veronii X11 ATY76512.1    
 CVS41_04875   Aeromonas veronii X11 ATY79199.1    
 CVS42_04180   Aeromonas veronii X12 ATY80107.1    
 CVS42_04170   Aeromonas veronii X12 ATY80105.1    
 CVS42_21950   Aeromonas veronii X12 ATY83253.1    
 CVS42_04230   Aeromonas veronii X12 ATY83348.1    
 ATC03_06135   Agromyces aureus AR33 ANJ26358.1    
 ATC03_06140   Agromyces aureus AR33 ANJ26359.1    
 ATC03_07530   Agromyces aureus AR33 ANJ26587.1    
 PYTT_1929   Akkermansia glycaniphila SEH94249.1    
 PYTT_2332   Akkermansia glycaniphila SEH98803.1    
 PYTT_1458   Akkermansia glycaniphila SEH88650.1    
 Amuc_2164   Akkermansia muciniphila ATCC BAA-835 ACD05971.1 B2UPU3  
 A4V05_06785   Akkermansia muciniphila YL44 ANU61157.1
 AO498_11855   Algoriphagus sp. M8-2 AMQ57134.1    
 AO498_13950   Algoriphagus sp. M8-2 AMQ57548.1    
 Aaci_1760   Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446 ACV58772.1 C8WXF0  
 Aaci_2245   Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446 ACV59254.1 C8WR85  
 Aaci_0258   Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446 ACV57320.1 C8WRB5  
 TC41_1659   Alicyclobacillus acidocaldarius subsp. acidocaldarius Tc-4-1 AEJ43588.1    
 TC41_0338 (YaaH)   Alicyclobacillus acidocaldarius subsp. acidocaldarius Tc-4-1 AEJ42306.1    
 TC41_2373 (fragment)   Alicyclobacillus acidocaldarius subsp. acidocaldarius Tc-4-1 AEJ44273.1    
 TC41_2521 (fragment)   Alicyclobacillus acidocaldarius subsp. acidocaldarius Tc-4-1 AEJ44418.1    
 chitinase A (ChiA) (fragment)   Aliivibrio fischeri ATCC7744 AAF37581.1 Q9LB34  
 chitinase A (ChiA) (fragment)   Aliivibrio logei ATCC 35077 ABY50217.1 B0F604  
 VSAL_I0757   Aliivibrio salmonicida LFI1238 CAQ78442.1 B6EH15  
 AWOD_I_1703 (ChiA)   Aliivibrio wodanis CED71771.1    
 AWOD_I_0978   Aliivibrio wodanis CED71069.1    
 Alfi_0055   Alistipes finegoldii DSM 17242 AFL76471.1    
 Alfi_0064   Alistipes finegoldii DSM 17242 AFL76480.1    
 Alfi_0071   Alistipes finegoldii DSM 17242 AFL76487.1    
 Alfi_0882   Alistipes finegoldii DSM 17242 AFL77250.1    
 Alfi_0894   Alistipes finegoldii DSM 17242 AFL77262.1    
 Alfi_0895   Alistipes finegoldii DSM 17242 AFL77263.1    
 Alfi_1104   Alistipes finegoldii DSM 17242 AFL77457.1    
 Alfi_1323   Alistipes finegoldii DSM 17242 AFL77669.1    
 Alfi_1558   Alistipes finegoldii DSM 17242 AFL77898.1    
 AL1_07250   Alistipes shahii WAL 8301 CBK63302.1 D4IK40  
 AL1_29030   Alistipes shahii WAL 8301 CBK65023.1 D4IQ11  
 AL1_08700   Alistipes shahii WAL 8301 CBK63421.1 D4IKF9  
 AL1_08710   Alistipes shahii WAL 8301 CBK63422.1 D4IKG0  
 AL1_08720   Alistipes shahii WAL 8301 CBK63423.1 D4IKG1  
 AL1_19370   Alistipes shahii WAL 8301 CBK64285.1 D4IMX3  
 AL1_19380   Alistipes shahii WAL 8301 CBK64286.1 D4IMX4  
 AL1_29020   Alistipes shahii WAL 8301 CBK65022.1 D4IQ10  
 AL1_29400   Alistipes shahii WAL 8301 CBK65046.1 D4IQ34  
 Amet_1089   Alkaliphilus metalliredigens QYMF ABR47301.1 A6TM83  
 Amet_3685   Alkaliphilus metalliredigens QYMF ABR49805.1 A6TUD7  
 Clos_0408   Alkaliphilus oremlandii OhILAs ABW17970.1 A8MLQ3  
 Clos_1547   Alkaliphilus oremlandii OhILAs ABW19090.1 A8MFC7  
 ORF   Alloactinosynnema sp. L-07 CRK59010.1    
 ORF   Alloactinosynnema sp. L-07 CRK57455.1    
 ORF   Alloactinosynnema sp. L-07 CRK57831.1    
 SD28_05945   Allofrancisella guangzhouensis 08HL01032 AJC49205.1    
 SD28_00900   Allofrancisella guangzhouensis 08HL01032 AJC49514.1    
 SD28_01345   Allofrancisella guangzhouensis 08HL01032 AJC48397.1    
 SD28_02700   Allofrancisella guangzhouensis 08HL01032 AJC48634.1    
 SD28_03540   Allofrancisella guangzhouensis 08HL01032 AJC48775.1    
 SAMN04489726_4263   Allokutzneria albata DSM 44149 SDM97201.1    
 SAMN04489726_3836   Allokutzneria albata DSM 44149 SDM88481.1    
 SAMN04489726_4793   Allokutzneria albata DSM 44149 SDN07850.1    
 SAMN04489726_5851   Allokutzneria albata DSM 44149 SDN27920.1    
 SAMN04489726_0438   Allokutzneria albata DSM 44149 SDM22106.1    
 SAMN04489726_3228   Allokutzneria albata DSM 44149 SDM75524.1    
 SAMN04489726_6540   Allokutzneria albata DSM 44149 SDN42093.1    
 AXY_00170   Amphibacillus xylanus NBRC 15112 BAM46149.1    
 AJAP_24440 (Chia2)   Amycolatopsis japonica MG417-CF17 AIG77737.1    
 AJAP_06830 (Chic1)   Amycolatopsis japonica MG417-CF17 AIG74283.1    
 AJAP_06820 (Chi01)   Amycolatopsis japonica MG417-CF17 AIG74281.1    
 AJAP_25340   Amycolatopsis japonica MG417-CF17 AIG77916.1    
 AJAP_31295   Amycolatopsis japonica MG417-CF17 AIG79081.1    
 AJAP_34465   Amycolatopsis japonica MG417-CF17 AIG79700.1    
 AJAP_22730   Amycolatopsis japonica MG417-CF17 AIG77401.1    
 AJAP_06825   Amycolatopsis japonica MG417-CF17 AIG74282.1    
 AJAP_20855   Amycolatopsis japonica MG417-CF17 AIG77031.1    
 AJAP_26680 (Chic2)   Amycolatopsis japonica MG417-CF17 AIG78183.1    
 SAMN04489733_4900   Amycolatopsis keratiniphila FH 1893 SDU48654.1    
 SAMN04489733_4191   Amycolatopsis keratiniphila FH 1893 SDU43346.1    
 SAMN04489733_8295   Amycolatopsis keratiniphila FH 1893 SDU68379.1    
 SAMN04489733_2879   Amycolatopsis keratiniphila FH 1893 SDU30481.1    
 SAMN04489733_8294   Amycolatopsis keratiniphila FH 1893 SDU68371.1    
 SAMN04489733_2149   Amycolatopsis keratiniphila FH 1893 SDU21935.1    
 SAMN04489733_3063   Amycolatopsis keratiniphila FH 1893 SDU32581.1    
 SAMN04489733_3336   Amycolatopsis keratiniphila FH 1893 SDU35424.1    
 SAMN04489733_8293   Amycolatopsis keratiniphila FH 1893 SDU68366.1    
 BB31_24550   Amycolatopsis lurida NRRL 2430 AJK56373.1    
 BB31_40935   Amycolatopsis lurida NRRL 2430 AJK59299.1    
 BB31_30595   Amycolatopsis lurida NRRL 2430 AJK57481.1    
 BB31_04880   Amycolatopsis lurida NRRL 2430 AJK52810.1    
 BB31_24540   Amycolatopsis lurida NRRL 2430 AJK56372.1    
 BB31_39035   Amycolatopsis lurida NRRL 2430 AJK58990.1    

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