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 (17417); Uniprot accession (3282); PDB accession (328); 3D entries (87); cryst (3)
All (15861) Archaea (62) Bacteria (11876) Eukaryota (3363) Viruses (323) unclassified (237) Structure (87 - 3 cryst) Characterized (482)
| 1 | 2 | 3 | 4 |
Viruses
Protein Name EC#OrganismGenBank UniprotPDB/3D
 PBI_RAPTOR_23   Microbacterium phage Raptor AVR56440.1    
 SEA_REDFIELD_23   Microbacterium phage Redfield AXH46413.1    
 PBI_ROBINSON_23   Microbacterium phage Robinson AVR56503.1    
 SEA_SANSA_21   Microbacterium phage Sansa AXH48594.1    
 SCHNAPSIDEE_23   Microbacterium phage Schnapsidee AXH68973.1    
 PBI_STINGRAY_23   Microbacterium phage StingRay AVJ51468.1    
 PBI_SUPERFRESH_23   Microbacterium phage Superfresh AUX83299.1    
 PBI_TEAGAN_23   Microbacterium phage Teagan AWN04304.1    
 PBI_TEDDYBEAR_23   Microbacterium phage TeddyBear AVR56566.1    
 PBI_TENDA_23   Microbacterium phage Tenda AUX83425.1    
 SAGO17_0013   Mimivirus AB-566-O17 ARR74933.1    
 ORF (fragment)   Mythimna unipuncta nucleopolyhedrovirus #7 AUV65312.1    
 chitinase   Mythimna unipuncta nucleopolyhedrovirus #7 AUV65301.1    
 Os5_119R   Only Syngen Nebraska virus 5 APC25632.1    
 Os5_117L   Only Syngen Nebraska virus 5 APC25630.1    
 chitinase (ChiA)   Orgyia ericae nucleopolyhedrovirus AAR90602.1 Q6R8F1  
 chitinase   Orgyia leucostigma nucleopolyhedrovirus ABY65750.1 B0FDP2  
 chitinase (ORF124)   Orgyia pseudotsugata multiple nucleopolyhedrovirus AAC59123.1
NP_046280.1
O10363  
 chitinase (A260R;PBCV1_A260R) 3.2.1.14 Paramecium bursaria Chlorella virus 1 AAC96628.1
AAC96628.3
AAC97066.2
NP_048613.1
O41019
Q84577
 
 endochitinase (A181/182R;PBCV1_A181/182R) 3.2.1.14 Paramecium bursaria Chlorella virus 1 AAC96549.2
AAC96549.3
NP_048529.1
Q84501  
 endochitinase (A181/182R;PBCV1_A181/182R) 3.2.1.14 Paramecium bursaria Chlorella virus 1 AAC96549.2
AAC96549.3
NP_048529.1
Q84501  
 PBCVAN69C_204R   Paramecium bursaria Chlorella virus AN69C AGE48399.1    
 PBCVAN69C_204R   Paramecium bursaria Chlorella virus AN69C AGE48399.1    
 PBCVAN69C_297R   Paramecium bursaria Chlorella virus AN69C AGE48437.1    
 PBCVAP110A_942R   Paramecium bursaria Chlorella virus AP110A AGE48989.1    
 PBCVAP110A_106R   Paramecium bursaria Chlorella virus AP110A AGE48698.1    
 AR158_C220R   Paramecium bursaria Chlorella virus AR158 ABU43766.1 A7RB24  
 AR158_C220R   Paramecium bursaria Chlorella virus AR158 ABU43766.1 A7RB24  
 PBCVCan184_944R (Can18-4_944R)   Paramecium bursaria Chlorella virus Can18-4 AGE50008.1    
 PBCVCan184_113R (Can18-4_113R)   Paramecium bursaria Chlorella virus Can18-4 AGE49710.1    
 PBCVCVA1_942R (Cvα-1_942R)   Paramecium bursaria Chlorella virus CVA-1 AGE50671.1    
 PBCVCVA1_102R (Cvα-1_102R)   Paramecium bursaria Chlorella virus CVA-1 AGE50385.1    
 PBCVCVB1_890R (Cvβ-1_890R)   Paramecium bursaria Chlorella virus CVB-1 AGE51009.1    
 PBCVCVB1_129R (Cvβ-1_129R)   Paramecium bursaria Chlorella virus CVB-1 AGE50730.1    
 PBCVCVG1_896R (Cvg-1_896R)   Paramecium bursaria Chlorella virus CVG-1 AGE51335.1    
 PBCVCVG1_105R (Cvg-1_105R)   Paramecium bursaria Chlorella virus CVG-1 AGE51059.1    
 PBCVCviKI_194R   Paramecium bursaria Chlorella virus CviKI AGE51440.1    
 PBCVCviKI_194R   Paramecium bursaria Chlorella virus CviKI AGE51440.1    
 chitinase (vChti-1) 3.2.1.14 Paramecium bursaria Chlorella virus CVK2 BAA78554.1 Q9WAX4  
 chitinase (vChti-1) 3.2.1.14 Paramecium bursaria Chlorella virus CVK2 BAA78554.1 Q9WAX4  
 PBCVCVM1_927R (Cvm-1_927R)   Paramecium bursaria Chlorella virus CVM-1 AGE52009.1    
 PBCVCVM1_122R (Cvm-1_122R)   Paramecium bursaria Chlorella virus CVM-1 AGE51723.1    
 PBCVCVR1_948R (Cvr-1_948R)   Paramecium bursaria Chlorella virus CVR-1 AGE52349.1    
 PBCVCVR1_109R (Cvr-1_109R)   Paramecium bursaria Chlorella virus CVR-1 AGE52062.1    
 PBCVCvsA1_200R   Paramecium bursaria Chlorella virus CvsA1 AGE52455.1    
 PBCVCvsA1_200R   Paramecium bursaria Chlorella virus CvsA1 AGE52455.1    
 PBCVCZ2_902R (Cz-2_902R)   Paramecium bursaria Chlorella virus CZ-2 AGE53016.1    
 PBCVCZ2_070R (Cz-2_070R)   Paramecium bursaria Chlorella virus CZ-2 AGE52727.1    
 FR483_N779R   Paramecium bursaria Chlorella virus FR483 ABT16064.1 A7J8D3  
 FR483_N779R   Paramecium bursaria Chlorella virus FR483 ABT16064.1 A7J8D3  
 PBCVFr5L_897R   Paramecium bursaria Chlorella virus Fr5L AGE53360.1    
 PBCVFr5L_098R   Paramecium bursaria Chlorella virus Fr5L AGE53069.1    
 PBCVIL3A_196R (Il-3a_196R)   Paramecium bursaria Chlorella virus IL-3A AGE53811.1    
 PBCVIL3A_196R (Il-3a_196R)   Paramecium bursaria Chlorella virus IL-3A AGE53811.1    
 PBCVIL3A_285R (Il-3a_285R)   Paramecium bursaria Chlorella virus IL-3A AGE53845.1    
 PBCVIL52s1_262R (Il-5-2s1_262R)   Paramecium bursaria Chlorella virus IL-5-2s1 AGE54161.1    
 PBCVIL52s1_262R (Il-5-2s1_262R)   Paramecium bursaria Chlorella virus IL-5-2s1 AGE54161.1    
 PBCVIL52s1_373R (Il-5-2s1_373R)   Paramecium bursaria Chlorella virus IL-5-2s1 AGE54203.1    
 PBCVKS1B_132R   Paramecium bursaria Chlorella virus KS1B AGE54506.1    
 PBCVKS1B_132R   Paramecium bursaria Chlorella virus KS1B AGE54506.1    
 PBCVKS1B_211R   Paramecium bursaria Chlorella virus KS1B AGE54540.1    
 PBCVMA1D_147R (Mα-1d_147R)   Paramecium bursaria Chlorella virus MA-1D AGE54806.1    
 PBCVMA1D_147R (Mα-1d_147R)   Paramecium bursaria Chlorella virus MA-1D AGE54806.1    
 PBCVMA1D_241R (Mα-1d_241R)   Paramecium bursaria Chlorella virus MA-1D AGE54843.1    
 PBCVMA1E_229R (Mα-1e_229R) (fragment)   Paramecium bursaria Chlorella virus MA-1E AGE55224.1    
 PBCVMA1E_194R (Mα-1e_194R) partial   Paramecium bursaria Chlorella virus MA-1E AGE55208.1    
 MT325_M085R   Paramecium bursaria chlorella virus MT325 ABT13639.1 A7ITG5  
 MT325_M791R   Paramecium bursaria chlorella virus MT325 ABT14345.1 A7IVH1  
 PBCVNEJV1_088R (Ne-jv-1_088R)   Paramecium bursaria Chlorella virus NE-JV-1 AGE56178.1    
 PBCVNEJV1_328L (Ne-jv-1_328L)   Paramecium bursaria Chlorella virus NE-JV-1 AGE56262.1    
 PBCVNEJV4_205R (Ne-jv-4_205R)   Paramecium bursaria Chlorella virus NE-JV-4 AGE57241.1    
 PBCVNEJV4_205R (Ne-jv-4_205R)   Paramecium bursaria Chlorella virus NE-JV-4 AGE57241.1    
 PBCVNEJV4_298R (Ne-jv-4_298R)   Paramecium bursaria Chlorella virus NE-JV-4 AGE57277.1    
 PBCVNW6652_921R (Nw665.2_921R)   Paramecium bursaria Chlorella virus NW665.2 AGE58174.1    
 PBCVNW6652_921R (Nw665.2_921R)   Paramecium bursaria Chlorella virus NW665.2 AGE58174.1    
 PBCVNY2B_270R (Ny-2b_270R)   Paramecium bursaria Chlorella virus NY-2B AGE58284.1    
 PBCVNY2B_270R (Ny-2b_270R)   Paramecium bursaria Chlorella virus NY-2B AGE58284.1    
 PBCVNY2B_367R (Ny-2b_367R)   Paramecium bursaria Chlorella virus NY-2B AGE58321.1    
 NY2A_B239R   Paramecium bursaria Chlorella virus NY2A ABT14638.1 A7IWB4  
 NY2A_B239R   Paramecium bursaria Chlorella virus NY2A ABT14638.1 A7IWB4  
 PBCVNYs1_251R (Nys-1_251R)   Paramecium bursaria Chlorella virus NYs1 AGE58657.1    
 PBCVNYs1_251R (Nys-1_251R)   Paramecium bursaria Chlorella virus NYs1 AGE58657.1    
 PBCVNYs1_360R (Nys-1_360R)   Paramecium bursaria Chlorella virus NYs1 AGE58698.1    
 PBCVOR070422_895R (Or0704.2.2_895R)   Paramecium bursaria Chlorella virus OR0704.2.2 AGE59258.1    
 PBCVOR070422_074R (Or0704.2.2_074R)   Paramecium bursaria Chlorella virus OR0704.2.2 AGE58965.1    
 pesp019   Peridroma alphabaculovirus AIE47750.1    
 Chitinase   Perigonia lusca single nucleopolyhedrovirus AKN80642.1    
 chitinase (PiraGV-K;PrGVORF10;Pirα-GV_ORF010)   Pieris rapae granulovirus ACZ63496.1
ADO85435.1
AHD24839.1
D2J4H7  
 chitinase (ChiA)   Plodia interpunctella granulovirus AKU75682.1    
 chitinase   Plodia interpunctella granulovirus APO13894.1    
 chitinase   Plutella xylostella multiple nucleopolyhedrovirus ABE68509.1 Q0GY99  
 chitinase (Orf108)   Pseudalatia unipuncta granulovirus Hawaiin ACH69458.1 B6S6X7  
 chitinase (Orf-64)   Pseudoplusia includens SNPV IE AJD80754.1    
 chitinase   Rachiplusia ou MNPV AAN28026.1
NP_703113.1
Q8B9D6  
 ORF (fragment)   Salmonid herpesvirus 3 AGB07607.1    
 ORF (fragment)   Salmonid herpesvirus 4 AGB07608.1    
 glycoprotein, partial (fragment)   Salmonid herpesvirus 5 AKN78990.1    
 chitinase (ChiA)   Samia cynthia nucleopolyhedrovirus Nagano BBD50638.1    
 chitinase (ChiA)   Samia ricini nucleopolyhedrovirus Mondulkiri BBD51246.1    
 chitinase (ChiA)   Samia ricini nucleopolyhedrovirus Son La BBD51398.1    
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