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 (14935); Uniprot accession (3282); PDB accession (301); 3D entries (77); cryst (4)
All (13391) Archaea (61) Bacteria (9754) Eukaryota (3083) Viruses (256) unclassified (237) Structure (77 - 4 cryst) Characterized (477)
| 1 | 2 | 3 |
Viruses
Protein Name EC#OrganismGenBank UniprotPDB/3D
 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)   Pseudaletia 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    
 ORF19   Spodoptera exigua multiple nucleopolyhedrovirus AAF33549.1
CDG72362.1
CDG72499.1
CDG72636.1
CDG72773.1
CDG72925.1
CDG73062.1
CDG73199.1
NP_037779.1
Q9J8B6  
 Sf22   Spodoptera frugiperda multiple nucleopolyhedrovirus ADV91253.1
ADV91255.1
AFH58973.1
AIW01432.1
   
 chitinase   Spodoptera frugiperda multiple nucleopolyhedrovirus 3AP2 ABM45733.1
ABV82986.1
ABV82995.1
A1YJ12  
 SlsnVgp038   Spodoptera littoralis nucleopolyhedrovirus AGE89893.1    
 chitinase A (ChiA) 3.2.1.14 Spodoptera litura nucleopolyhedrovirus AGN92862.1    
 chitinase   Spodoptera litura nucleopolyhedrovirus EGYPT ABY84875.1 B0LUL7  
 chitinase (ORF42;ChiA)   Spodoptera litura nucleopolyhedrovirus FUKUYAMA ABY84879.1 B0LUM1  
 chitinase (ORF42;ChitA;SlnVgp042)   Spodoptera litura nucleopolyhedrovirus G2 AAL01727.1
AAG02378.1
NP_258310.1
Q9EN64  
 chitinase   Spodoptera litura nucleopolyhedrovirus II ACI47387.1 B7SVP5  
 chitinase   Spodoptera litura nucleopolyhedrovirus OGASAWARA ABY84883.1 B0LUM5  
 chitinase   Sucra jujuba nucleopolyhedrovirus AIU41293.1    
 chitinase   Thysanoplusia orichalcea nucleopolyhedrovirus AGA16275.1    
 chitinase   Trichoplusia ni granulovirus AOW41438.1    
 chitinase   Trichoplusia ni single nucleopolyhedrovirus AAZ67432.1 Q462A4  
 ORF   Wiseana iridescent virus ADO00363.1    
 XecnGVgp103 (Orf103)   Xestia c-nigrum granulovirus AAF05217.1
NP_059251.1
Q9PYU0  
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