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 (14721); Uniprot accession (3282); PDB accession (301); 3D entries (77); cryst (4)
All (13178) Archaea (61) Bacteria (9567) Eukaryota (3057) Viruses (256) unclassified (237) Structure (77 - 4 cryst) Characterized (477)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 96 |
Protein Name EC#OrganismGenBank UniprotPDB/3D
 BN85306710   Acholeplasma brassicae O502 CCV65692.1    
 ACL_1282 (possible fragments)   Acholeplasma laidlawii PG-8A ABX81877.1 A9NHP7  
 Aocu_01140   Acholeplasma oculi CDR30187.1    
 Acfer_0647   Acidaminococcus fermentans DSM 20731 ADB47041.1 D2RIY9  
 Acin_0827   Acidaminococcus intestini RyC-MR95 AEQ22057.1    
 Acin_2065   Acidaminococcus intestini RyC-MR95 AEQ23268.1    
 Afer_0020   Acidimicrobium ferrooxidans DSM 10331 ACU52995.1 C7M1E6  
 Afer_2006   Acidimicrobium ferrooxidans DSM 10331 ACU54908.1 C7M2B9  
 LuPra_00198 (Chia1)   Acidobacteria bacterium DSM 100886 AMY07034.1    
 ACP_0575   Acidobacterium capsulatum ATCC 51196 ACO31704.1 C1F1H5  
 ACP_3012   Acidobacterium capsulatum ATCC 51196 ACO32543.1 C1F4G9  
 ACP_0030   Acidobacterium capsulatum ATCC 51196 ACO31679.1 C1F7Y7  
 ACP_0038   Acidobacterium capsulatum ATCC 51196 ACO33699.1 C1F7Z5  
 ACP_0037 (ChiA)   Acidobacterium capsulatum ATCC 51196 ACO34594.1 C1F7Z4  
 Acel_0424   Acidothermus cellulolyticus 11B ABK52198.1 A0LRY8  
 Acel_0603   Acidothermus cellulolyticus 11B ABK52376.1 A0LSG6  
 Acel_1458 (probable fragment)   Acidothermus cellulolyticus 11B ABK53230.1 A0LUX0  
 Acel_1459 (possible fragment)   Acidothermus cellulolyticus 11B ABK53231.1 A0LUX1  
 Acel_1460   Acidothermus cellulolyticus 11B ABK53232.1 A0LUX2  
 Acel_2033   Acidothermus cellulolyticus 11B ABK53805.1 A0LWJ5  
 Acav_3310   Acidovorax avenae subsp. avenae ATCC 19860 ADX47212.1    
 Aave_3442   Acidovorax citrulli AAC00-1 ABM33999.1 A1TSR1  
 CQB05_05295   Acidovorax citrulli KACC17005 ATG93522.1    
 AHOG_25215 (ChtA)   Actinoalloteichus hoggarensis DSM 45943 ASO22648.1    
 AHOG_01100 (Chia2)   Actinoalloteichus hoggarensis DSM 45943 ASO17887.1    
 TL08_24055   Actinoalloteichus hymeniacidonis HPA177(T) (=DSM 45092(T)) AOS65589.1    
 UA74_27250   Actinoalloteichus sp. ADI127-7 APU17453.1    
 UA74_01130   Actinoalloteichus sp. ADI127-7 APU12317.1    
 UA75_01130   Actinoalloteichus sp. GBA129-24 APU18269.1    
 UA75_27840   Actinoalloteichus sp. GBA129-24 APU23539.1    
 SAMN04489716_5115   Actinoplanes derwentensis DSM 43941 SDT64180.1    
 SAMN04489716_7113   Actinoplanes derwentensis DSM 43941 SDT74844.1    
 SAMN04489716_7827   Actinoplanes derwentensis DSM 43941 SDT77092.1    
 SAMN04489716_7116   Actinoplanes derwentensis DSM 43941 SDT74852.1    
 SAMN04489716_7115   Actinoplanes derwentensis DSM 43941 SDT74849.1    
 AFR_28310   Actinoplanes friuliensis DSM 7358 AGZ43923.1    
 AFR_03010   Actinoplanes friuliensis DSM 7358 AGZ38891.1    
 AFR_08740   Actinoplanes friuliensis DSM 7358 AGZ40037.1    
 AFR_08905   Actinoplanes friuliensis DSM 7358 AGZ40070.1    
 AFR_09645   Actinoplanes friuliensis DSM 7358 AGZ40218.1    
 AFR_20460   Actinoplanes friuliensis DSM 7358 AGZ42364.1    
 AFR_37820   Actinoplanes friuliensis DSM 7358 AGZ45818.1    
 AFR_37910   Actinoplanes friuliensis DSM 7358 AGZ45836.1    
 AFR_42015   Actinoplanes friuliensis DSM 7358 AGZ46657.1    
 AFR_42305   Actinoplanes friuliensis DSM 7358 AGZ46715.1    
 AFR_37825   Actinoplanes friuliensis DSM 7358 AGZ45819.1    
 AMIS_60510   Actinoplanes missouriensis 431 BAL91271.1    
 AMIS_72290   Actinoplanes missouriensis 431 BAL92449.1    
 AMIS_72530   Actinoplanes missouriensis 431 BAL92473.1    
 AMIS_72540   Actinoplanes missouriensis 431 BAL92474.1    
 AMIS_49120   Actinoplanes missouriensis 431 BAL90132.1    
 AMIS_4550   Actinoplanes missouriensis 431 BAL85675.1    
 AMIS_12680   Actinoplanes missouriensis 431 BAL86488.1    
 AMIS_13300   Actinoplanes missouriensis 431 BAL86550.1    
 AMIS_14680   Actinoplanes missouriensis 431 BAL86688.1    
 AMIS_40000   Actinoplanes missouriensis 431 BAL89220.1    
 L083_0685   Actinoplanes sp. N902-109 AGL14195.1    
 L083_1809 (ChiC)   Actinoplanes sp. N902-109 AGL15319.1    
 L083_1938 (ChiD)   Actinoplanes sp. N902-109 AGL15448.1    
 L083_2736   Actinoplanes sp. N902-109 AGL16246.1    
 L083_4788   Actinoplanes sp. N902-109 AGL18298.1    
 L083_4801 (ChiA) (fragment)   Actinoplanes sp. N902-109 AGL18311.1    
 L083_7167   Actinoplanes sp. N902-109 AGL20677.1    
 L083_7168 (ChiB)   Actinoplanes sp. N902-109 AGL20678.1    
 L083_7184   Actinoplanes sp. N902-109 AGL20694.1    
 L083_7998   Actinoplanes sp. N902-109 AGL21508.1    
 L083_8082   Actinoplanes sp. N902-109 AGL21592.1    
 ACPL_603 (ChiD)   Actinoplanes sp. SE50/110 AEV81500.1
 ACPL_1477   Actinoplanes sp. SE50/110 AEV82374.1
 ACPL_1546 (ChiA)   Actinoplanes sp. SE50/110 AEV82443.1
 ACPL_1697 (ChiC)   Actinoplanes sp. SE50/110 AEV82594.1
 ACPL_2976 (ChiA)   Actinoplanes sp. SE50/110 AEV83871.1
 ACPL_3735   Actinoplanes sp. SE50/110 AEV84630.1
 ACPL_3736   Actinoplanes sp. SE50/110 AEV84631.1
 ACPL_7498   Actinoplanes sp. SE50/110 AEV88378.1
 ACPL_7521   Actinoplanes sp. SE50/110 AEV88401.1
 ACPL_7522 (ChiD)   Actinoplanes sp. SE50/110 AEV88402.1
 ACPL_8160   Actinoplanes sp. SE50/110 AEV89038.1
 ACPL_678 (fragment)   Actinoplanes sp. SE50/110 AEV81575.1
 ACPL_4052   Actinoplanes sp. SE50/110 AEV84947.1
 ACPL_5098   Actinoplanes sp. SE50/110 AEV85985.1
 ACPL_8214   Actinoplanes sp. SE50/110 AEV89092.1
 CDG81_03585   Actinopolyspora erythraea YIM 90600 ASU77540.1    
 CDG81_13115   Actinopolyspora erythraea YIM 90600 ASU79070.1    
 CDG81_08775   Actinopolyspora erythraea YIM 90600 ASU78367.1    
 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    

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