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 (15653); Uniprot accession (3282); PDB accession (318); 3D entries (84); cryst (4)
All (14113) Archaea (61) Bacteria (10359) Eukaryota (3181) Viruses (275) unclassified (237) Structure (84 - 4 cryst) Characterized (477)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 104 |
Protein Name EC#OrganismGenBank UniprotPDB/3D
 CDG81_09015   Actinopolyspora erythraea YIM 90600 ASU78402.1    
 Amir_1220   Actinosynnema mirum DSM 43827 ACU35172.1 C6WRC0  
 Amir_6206   Actinosynnema mirum DSM 43827 ACU40011.1 C6WHR2  
 Amir_6238   Actinosynnema mirum DSM 43827 ACU40042.1 C6WIW6  
 Amir_3907   Actinosynnema mirum DSM 43827 ACU37781.1 C6WEI1  
 CNX65_19640   Actinosynnema pretiosum X47 ATE55222.1    
 CNX65_30555   Actinosynnema pretiosum X47 ATE57099.1    
 CNX65_30710   Actinosynnema pretiosum X47 ATE57124.1    
 CNX65_06095   Actinosynnema pretiosum X47 ATE52904.1    
 ADH66_00635   Acutalibacter muris KB18 ASB39292.1    
 ADH66_18215   Acutalibacter muris KB18 ASB42412.1    
 AP3564_04985   Aeribacillus pallidus KCTC3564 ASS92271.1    
 AP3564_13555   Aeribacillus pallidus KCTC3564 ASS91111.1    
 AP3564_13940   Aeribacillus pallidus KCTC3564 ASS92423.1    
 BOQ57_04850   Aeromonas aquatica MX16A APJ14274.1    
 BOQ57_17590   Aeromonas aquatica MX16A APJ16638.1    
 VI35_16365   Aeromonas caviae 8LM ATP91491.1    
 chitinase (Chi1) Aeromonas caviae CB101 CAD58828.1 Q8GHI4  
 MC60_017825   Aeromonas caviae FDAARGOS_72 AUU24428.1    
 MC60_008710   Aeromonas caviae FDAARGOS_72 AUU22062.1    
 chitinase A (ChiA;AcD1ChiA) Aeromonas caviae K1 / D1 AAA93130.1 Q43919  
 chitinase   Aeromonas caviae WS7B CAD24484.1 Q8RQE5  
 CK627_21340   Aeromonas dhakensis KN-Mc-6U21 ASX13152.1    
 CK627_08555   Aeromonas dhakensis KN-Mc-6U21 ASX10822.1    
 chitinase Aeromonas hydrophila 11 AAF00578.1 Q9RQJ3  
 AH4AK4_3355   Aeromonas hydrophila 4AK4 AHE50781.1    
 AH4AK4_0915   Aeromonas hydrophila 4AK4 AHE48387.1    
 VU14_04505   Aeromonas hydrophila AH10 AKA16162.1    
 VU14_17625   Aeromonas hydrophila AH10 AKA18591.1    
 TK34_04940   Aeromonas hydrophila AHNIH1 ANT66864.1    
 TK34_17400   Aeromonas hydrophila AHNIH1 ANT69090.1    
 RY45_05390   Aeromonas hydrophila AL06-06 AJQ53548.1    
 V428_05445   Aeromonas hydrophila AL09-71 AHX31544.1    
 V428_19005   Aeromonas hydrophila AL09-71 AHX34057.1    
 chitinase A (ChiA) (fragment)   Aeromonas hydrophila ATCC7966 AAF37580.1 Q9LB35  
 AhyD4_04460   Aeromonas hydrophila D4 ALZ78880.1    
 AhyD4_17900   Aeromonas hydrophila D4 ALZ81386.1    
 A9258_04255   Aeromonas hydrophila GYK1 ANR98872.1    
 V469_04260   Aeromonas hydrophila J-1 AJE35163.1    
 V469_17905   Aeromonas hydrophila J-1 AJE37624.1    
 AS145_18080   Aeromonas hydrophila JBN2301 ALQ64714.1    
 AS145_04500   Aeromonas hydrophila JBN2301 ALQ62180.1    
 chitinase (ChiA) Aeromonas hydrophila JMP636 AAF70180.1
 chitinase 92 (Chi92) Aeromonas hydrophila JP101 AAG09437.1 Q9F9Q8  
 AHML_05225   Aeromonas hydrophila ML09-119 AGM42829.1    
 AHML_18340   Aeromonas hydrophila ML09-119 AGM45434.1    
 chitinase-3   Aeromonas hydrophila ML10-51K APU52743.1    
 chitodextrinase precursor   Aeromonas hydrophila ML10-51K APU52731.1    
 U876_04240   Aeromonas hydrophila NJ-35 AKJ33359.1    
 U876_18530   Aeromonas hydrophila NJ-35 AKJ35914.1    
 V429_05450   Aeromonas hydrophila pc104A AHX68339.1    
 V429_19035   Aeromonas hydrophila pc104A AHX70858.1    
 extracellular chitinase (ChiA) (fragment)   Aeromonas hydrophila SSU ABD59013.1 Q0ZKB1  
 AHA_3440   Aeromonas hydrophila subsp. hydrophila ATCC 7966 ABK38659.1 A0KNS8  
 chitinase (Chi-A;AHA_0977) Aeromonas hydrophila subsp. hydrophila ATCC 7966 ABK39408.1 A0KGX3  
 chitinase (ChiA) Aeromonas hydrophila SUWA-9 BAE87051.1 Q25BN2  
 chitinase (fragment)   Aeromonas hydrophila SWCH-6 ACH89423.1 C5H438  
 AI20_14375   Aeromonas hydrophila YL17 AHV36324.1    
 AI20_02165   Aeromonas hydrophila YL17 AHV34043.1    
 B224_4317   Aeromonas media WS AHX62384.1    
 B224_0671   Aeromonas media WS AHX59757.1    
 CHQ57_17220   Aeromonas salmonicida A527 ATV00089.1    
 CHQ57_04410   Aeromonas salmonicida A527 ATU96773.1    
 CE456_19880   Aeromonas salmonicida S121 ASI24555.1    
 CE463_19875   Aeromonas salmonicida S44 ASI28874.1    
 CE462_18825   Aeromonas salmonicida S68 ASI33004.1    
 BHG40_00175   Aeromonas salmonicida subsp. masoucida RFAS1 ATD36578.1    
 Asalp_11500 (ChiA)   Aeromonas salmonicida subsp. pectinolytica 34mel ATP08370.1    
 Asalp_38100   Aeromonas salmonicida subsp. pectinolytica 34mel ATP10897.1    
 ASA_0873   Aeromonas salmonicida subsp. salmonicida A449 ABO89008.1 A4SJD6  
 hexaoligochitin-producing chitinase (ASCHI61) (fragment) Aeromonas schubertii ABF29701.1 D2CFK8  
 WL1483_4007 (ChiA)   Aeromonas schubertii WL1483 ALP43426.1    
 WL1483_564 (ChiA) (fragment)   Aeromonas schubertii WL1483 ALP39983.1    
 WL1483_76 (fragment)   Aeromonas schubertii WL1483 ALP39495.1    
 WL1483_2921 (fragment)   Aeromonas schubertii WL1483 ALP42340.1    
 chitinase II Aeromonas sp. 10S-24 BAA06605.1 Q59145  
 chitinase (pCA8) Aeromonas sp. 10S-24 BAA36459.1 Q9ZNJ2  
 chitinase (ORF1) Aeromonas sp. 10S-24 BAA09626.1 Q59141  
 chitinase (ORF2) Aeromonas sp. 10S-24 BAA09627.1 Q59142  
 chitinase (ORF3) Aeromonas sp. 10S-24 BAA09628.1 Q59143  
 chitinase 1, partial (Chi1) (fragment)   Aeromonas sp. 17m AFR23580.1    
 chitinase A, partial (ChiA) (fragment)   Aeromonas sp. 17m AFR23581.1    
 C2U37_02410   Aeromonas sp. ASNIH1 AUZ78654.1    
 C2U37_11970   Aeromonas sp. ASNIH1 AUZ82490.1    
 C2U39_17630   Aeromonas sp. ASNIH3 AUV13815.1    
 C2U39_04755   Aeromonas sp. ASNIH3 AUV14699.1    
 C2U40_17060   Aeromonas sp. ASNIH4 AUZ76382.1    
 C2U40_03240   Aeromonas sp. ASNIH4 AUZ73901.1    
 C2U30_19670   Aeromonas sp. ASNIH5 AUT43665.1    
 C2U30_08985   Aeromonas sp. ASNIH5 AUT44282.1    
 C2U47_04970   Aeromonas sp. ASNIH7 AUV16061.1    
 C2U47_14800   Aeromonas sp. ASNIH7 AUV19161.1    
 CK910_09840   Aeromonas sp. CA23 ATM01255.1    
 CK910_00080   Aeromonas sp. CA23 ATL97052.1    
 chitinase (ChiCD3) Aeromonas sp. CD3 / Aeromonas veronii CD3 ACR33067.1 D2DJ38  
 CK911_00915   Aeromonas sp. CU5 ATL91529.1    
 CK911_00930   Aeromonas sp. CU5 ATL91532.1    
 CK911_12780   Aeromonas sp. CU5 ATL95172.1    
 CK911_17005   Aeromonas sp. CU5 ATL94317.1    
 O23A_p0040   Aeromonas sp. O23A ARW80794.1    

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