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)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (20364); Uniprot accession (3282); PDB accession (348); 3D entries (90); cryst (3)
All (18780) Archaea (78) Bacteria (14482) Eukaryota (3618) Viruses (365) unclassified (237) Structure (90 - 3 cryst) Characterized (490)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 145 |
Protein Name EC#OrganismGenBank UniprotPDB/3D
 DOZ58_01090   Acetobacterium sp. KB-1 AWW25352.1    
 BN85306710   Acholeplasma brassicae O502 CCV65692.1    
 NCTC10172_01184 (Chia1)   Acholeplasma hippikon NCTC10172 VEU83132.1    
 NCTC10116_01289 (Chia1)   Acholeplasma laidlawii NCTC10116 SQH57468.1    
 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    
 ACPOL_2565   Acidobacteriaceae bacterium SBC82 AXC11885.1    
 ACPOL_3555   Acidobacteriaceae bacterium SBC82 AXC12840.1    
 ACPOL_3848   Acidobacteriaceae bacterium SBC82 AXC13127.1    
 ACPOL_6017   Acidobacteriaceae bacterium SBC82 AXC15261.1    
 ACPOL_1623   Acidobacteriaceae bacterium SBC82 AXC10969.1    
 ACPOL_5649   Acidobacteriaceae bacterium SBC82 AXC14897.1    
 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  
 C8245_13530   Acidovorax avenae subsp. avenae AA81_1 AVS66561.1    
 C8247_14055   Acidovorax avenae subsp. avenae AA99_2 AVS71445.1    
 Acav_3310   Acidovorax avenae subsp. avenae ATCC 19860 ADX47212.1    
 C8234_10890   Acidovorax avenae subsp. avenae COLB1 AVS78527.1    
 C8237_13795   Acidovorax avenae subsp. avenae INDB2 AVS82057.1    
 C8239_13635   Acidovorax avenae subsp. avenae INV AVS85667.1    
 C8238_14035   Acidovorax avenae subsp. avenae KL3 AVS89211.1    
 C8246_22725   Acidovorax avenae subsp. avenae MD5 AVS94082.1    
 C8236_13605   Acidovorax avenae subsp. avenae MOR AVS99751.1    
 C8243_13725   Acidovorax avenae subsp. avenae NCT3 AVT03437.1    
 C8248_13160   Acidovorax avenae subsp. avenae QH1 AVT06806.1    
 C8235_10990   Acidovorax avenae subsp. avenae Sa2 AVT13352.1    
 C7Y68_15185   Acidovorax avenae subsp. avenae SH7 AVT21171.1    
 C8240_15180   Acidovorax cattleyae CAT98_1 AVS75149.1    
 Aave_3442   Acidovorax citrulli AAC00-1 ABM33999.1 A1TSR1  
 CQB05_05295   Acidovorax citrulli KACC17005 ATG93522.1    
 APS58_0482 (Chia1)   Acidovorax citrulli M6 QCX09436.1    
 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    
 EF847_05120   Actinobacteria bacterium YIM 96077 AYY12177.1    
 EF847_17760   Actinobacteria bacterium YIM 96077 AYY14269.1    
 EF847_08080   Actinobacteria bacterium YIM 96077 AYY12677.1    
 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    
 ACTI_34310   Actinoplanes sp. OR16 BBH66746.1    
 ACTI_33810   Actinoplanes sp. OR16 BBH66696.1    
 ACTI_25330   Actinoplanes sp. OR16 BBH65848.1    
 ACTI_35730   Actinoplanes sp. OR16 BBH66888.1    
 ACTI_43430   Actinoplanes sp. OR16 BBH67658.1    
 ACTI_72540   Actinoplanes sp. OR16 BBH70569.1    
 ACTI_65570   Actinoplanes sp. OR16 BBH69872.1    

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