Glycoside Hydrolase Family 18

Activities in Familychitinase (EC 3.2.1.14); lysozyme (EC 3.2.1.17); endo-β-N-acetylglucosaminidase (EC 3.2.1.96); 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
ClanGH-K
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 (14617); Uniprot accession (3282); PDB accession (301); 3D entries (77); cryst (4)
All (13074) Archaea (61) Bacteria (9464) Eukaryota (3057) Viruses (255) unclassified (237) Structure (77 - 4 cryst) Characterized (477)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 95 |
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D
 chitinase (Chi1) 3.2.1.14 Aeromonas caviae CB101 CAD58828.1 Q8GHI4  
 chitinase A (ChiA;AcD1ChiA) 3.2.1.14 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 3.2.1.14 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) 3.2.1.14 Aeromonas hydrophila JMP636 AAF70180.1
AAE36542.1
Q9L5D5  
 chitinase 92 (Chi92) 3.2.1.14 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) 3.2.1.14 Aeromonas hydrophila subsp. hydrophila ATCC 7966 ABK39408.1 A0KGX3  
 chitinase (ChiA) 3.2.1.14 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    
 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    
 ASA_0873   Aeromonas salmonicida subsp. salmonicida A449 ABO89008.1 A4SJD6  
 hexaoligochitin-producing chitinase (ASCHI61) (fragment) 3.2.1.14 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 3.2.1.14 Aeromonas sp. 10S-24 BAA06605.1 Q59145  
 chitinase (pCA8) 3.2.1.14 Aeromonas sp. 10S-24 BAA36459.1 Q9ZNJ2  
 chitinase (ORF1) 3.2.1.14 Aeromonas sp. 10S-24 BAA09626.1 Q59141  
 chitinase (ORF2) 3.2.1.14 Aeromonas sp. 10S-24 BAA09627.1 Q59142  
 chitinase (ORF3) 3.2.1.14 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    
 chitinase (ChiCD3) 3.2.1.14 Aeromonas sp. CD3 / Aeromonas veronii CD3 ACR33067.1 D2DJ38  
 O23A_p0040   Aeromonas sp. O23A ARW80794.1    
 O23A_p2689   Aeromonas sp. O23A ARW83428.1    
 WM43_12265   Aeromonas veronii AVNIH1 ANB53380.1    
 WM43_17395   Aeromonas veronii AVNIH1 ANB54299.1    
 WM43_17340   Aeromonas veronii AVNIH1 ANB54293.1    
 WM43_17350   Aeromonas veronii AVNIH1 ANB54295.1    
 chitinase (ChiB565;B565_0857) 3.2.1.14 Aeromonas veronii B565 AEB48892.1    
 B565_3976   Aeromonas veronii B565 AEB52011.1    
 chitinase (Chi92;B565_0850)   Aeromonas veronii B565 AEB48885.1    
 chitinase (ChiA;B565_0852)   Aeromonas veronii B565 AEB48887.1    
 ChiA (ChiA) (fragment)   Aeromonas veronii bv. sobria Ho635 ADZ06077.1    
 ChiA (ChiA) (fragment)   Aeromonas veronii bv. sobria Hv648 ADZ06079.1    
 ChiA (ChiA) (fragment)   Aeromonas veronii bv. sobria LMG13695 ADZ06069.1    
 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    
 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
ANU61157.2
ASB34651.1
   
 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  
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