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Glycoside Hydrolase Family 18

Activities in FamilyNod factor hydrolase (EC 3.2.1.-);
Chitin exo-β-1,4-N-acetylglucosaminidase (EC 3.2.1.-);
Di-N-acetylchitobiase / reducing-end exo-hexosaminidase (EC 3.2.1.-);
Peptidoglycan endo-β-1,4-N-acetylglucosaminidase (EC 3.2.1.-);
Chitosanase (EC 3.2.1.132);
Chitinase (EC 3.2.1.14);
Chitin exo-β-1,4-N-acetylglucobiosaminidase (EC 3.2.1.200);
[reducing end] exo-chitinase (EC 3.2.1.201);
β-N-acetylhexosaminidase (EC 3.2.1.52);
Mannosyl-glycoprotein endo-β-N-acetylglucosaminidase (EC 3.2.1.96);
Mechanism Retaining e
ClanGH-K
3D Structure Status( β / α ) 8 barrel
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 (41399); Uniprot accession (502); PDB accession (425); 3D entries (110); cryst (2)
Summary
Download GH18 (53976) Taxonomic display Structure (110 - 2 cryst) Characterized (431)
| 1 | 2 | 3 |
unclassified
Protein Name EC#OrganismGenBank UniprotPDB/3D
 chitinase   synthetic baculovirus AcMNPV-WIV-Syn1 ARJ58658.1    
 BT-12   uncultured microorganism ADR64674.1    
 2B_04 (fragment)   uncultured organism ADB56985.1    
 ORF (short fragment)   uncultured organism ADB56986.1    
 ORF (short fragment)   uncultured organism ADB56987.1    
 ORF (short fragment)   uncultured organism ADB56989.1    
 ORF (short fragment)   uncultured organism ADB56990.1    
 ORF (short fragment)   uncultured organism ADB56991.1    
 ORF (short fragment)   uncultured organism ADB56992.1    
 ORF (short fragment)   uncultured organism ADB56993.1    
 ORF (short fragment)   uncultured organism ADB56994.1    
 ORF (short fragment)   uncultured organism ADB56995.1    
 2B_19 (fragment)   uncultured organism ADB56997.1    
 ORF (short fragment)   uncultured organism ADB56999.1    
 ORF (short fragment)   uncultured organism ADB57002.1    
 ORF (short fragment)   uncultured organism ADB57003.1    
 ORF (short fragment)   uncultured organism ADB57004.1    
 ORF (short fragment)   uncultured organism ADB57005.1    
 ORF (short fragment)   uncultured organism ADB57006.1    
 ORF (short fragment)   uncultured organism ADB57007.1    
 ORF (short fragment)   uncultured organism ADB57008.1    
 ORF (short fragment)   uncultured organism ADB57009.1    
 ORF (short fragment)   uncultured organism ADB57010.1    
 ORF (short fragment)   uncultured organism ADB57011.1    
 ORF (short fragment)   uncultured organism ADB57012.1    
 ORF (short fragment)   uncultured organism ADB57013.1    
 ORF (short fragment)   uncultured organism ADB57014.1    
 ORF (short fragment)   uncultured organism ADB57015.1    
 ORF (short fragment)   uncultured organism ADB57016.1    
 ORF (short fragment)   uncultured organism ADB57017.1    
 ORF (short fragment)   uncultured organism ADB57018.1    
 ORF (short fragment)   uncultured organism ADB57019.1    
 ORF (short fragment)   uncultured organism ADB57021.1    
 ORF (short fragment)   uncultured organism ADB57022.1    
 ORF (short fragment)   uncultured organism ADB57024.1    
 chitinase (fragment)   uncultured organism AAS19503.1    
 chitinase (fragment)   uncultured organism AAS19506.1    
 chitinase (fragment)   uncultured organism AAS19501.1    
 chitinase (fragment)   uncultured organism AAS19505.1    
 chitinase (fragment)   uncultured organism AAS19499.1    
 chitinase (fragment)   uncultured organism AAS19500.1    
 chitinase (fragment)   uncultured organism AAS19504.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77195.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77038.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77059.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77063.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77064.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77065.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77066.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77070.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77071.1
CDF77072.1		    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77073.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77074.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77075.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77129.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77130.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77131.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77132.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77134.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77139.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77140.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77156.1
CDF77157.1		    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77201.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77202.1    
 family 18 glycoside hydrolase, partial (fragment)   uncultured organism CDF77212.1    
 ORF (fragment)   uncultured organism CDF77036.1    
 ORF (fragment)   uncultured organism CDF77037.1    
 ORF (fragment)   uncultured organism CDF77039.1    
 ORF (fragment)   uncultured organism CDF77040.1    
 ORF (fragment)   uncultured organism CDF77041.1    
 ORF (fragment)   uncultured organism CDF77042.1    
 ORF (fragment)   uncultured organism CDF77043.1    
 ORF (fragment)   uncultured organism CDF77044.1    
 ORF (fragment)   uncultured organism CDF77045.1    
 ORF (fragment)   uncultured organism CDF77046.1    
 ORF (fragment)   uncultured organism CDF77047.1    
 ORF (fragment)   uncultured organism CDF77048.1    
 ORF (fragment)   uncultured organism CDF77049.1    
 ORF (fragment)   uncultured organism CDF77050.1
CDF77051.1		    
 ORF (fragment)   uncultured organism CDF77052.1    
 ORF (fragment)   uncultured organism CDF77053.1    
 ORF (fragment)   uncultured organism CDF77054.1
CDF77055.1		    
 ORF (fragment)   uncultured organism CDF77056.1    
 ORF (fragment)   uncultured organism CDF77057.1    
 ORF (fragment)   uncultured organism CDF77058.1    
 ORF (fragment)   uncultured organism CDF77060.1
CDF77061.1		    
 ORF (fragment)   uncultured organism CDF77062.1    
 ORF (fragment)   uncultured organism CDF77067.1    
 ORF (fragment)   uncultured organism CDF77068.1    
 ORF (fragment)   uncultured organism CDF77069.1    
 ORF (fragment)   uncultured organism CDF77076.1    
 ORF (fragment)   uncultured organism CDF77077.1    
 ORF (fragment)   uncultured organism CDF77078.1    
 ORF (fragment)   uncultured organism CDF77079.1    
 ORF (fragment)   uncultured organism CDF77080.1    
 ORF (fragment)   uncultured organism CDF77081.1    
 ORF (fragment)   uncultured organism CDF77082.1    
 ORF (fragment)   uncultured organism CDF77083.1    
 ORF (fragment)   uncultured organism CDF77084.1    
 ORF (fragment)   uncultured organism CDF77085.1    
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