Glycoside Hydrolase Family 19

Activities in Familychitinase (EC 3.2.1.14); lysozyme (EC 3.2.1.17)
Mechanism Inverting
Catalytic Nucleophile/BaseNot known
Catalytic Proton DonorNot known
NoteContains chitinases of classes I, II, and IV.
External resourcesCAZypedia; HOMSTRAD; PROSITE;
Statistics GenBank accession (5523); Uniprot accession (970); PDB accession (27); 3D entries (15); cryst (0)
All (4666) Bacteria (3341) Eukaryota (838) Viruses (485) unclassified (2) Structure (15) Characterized (176)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 chitinase G (ChiG;SCO0482;SCF80.03;SCF34.01) (Chi19G) 3.2.1.14 Streptomyces coelicolor A3(2) CAD55444.1
BAA75648.1
CAB57191.1
NP_733504.1
Q8CK55
Q9Z9M4
2CJL[A,B] 1.5
 chitinase C (ChiC) 3.2.1.14 Streptomyces griseus HUT 6037 BAA23739.1 O50152
1WVU[A,B] 2.45
1WVV[A,B] 2.00
2DBT[A,B,C] 3.14
Eukaryota
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 chitinase (Ch1;Chi2;Chi3) 3.2.1.14 Brassica juncea AAF02299.1
ABC04842.1
Q9SQF7
2Z37[A,B,C,D] 1.53
2Z38[A] 1.80
2Z39[A,B] 1.70
 chitinase 3.2.1.14 Canavalia ensiformis CAA07413.1 O81934
1DXJ[A] 1.8
 lysozyme / chitinase (major) (partial) 3.2.1.14 Carica papaya   P81241
P85084
3CQL[B] α-D-GlcpNAc
β-D-GlcpNAc
1.50
3CQL[A] α-D-GlcpNAc
β-D-GlcpNAc
1.50
 chitinase A (ChiA;BcChiA;BcChi-A) 3.2.1.14 Gemmabryum coronatum BAF99002.1 A9ZSX9
3WH1[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc
1.00
4IJ4[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc
1.58
 chitinase-like protein 1 / allergen (Rq30;Clp1;Chi-L1;HbCLP1;Hev b 11.0101)   Hevea brasiliensis AHF88836.1
CAC42881.1
Q949H3
4MST[A,B] 1.93
 chitinase 3.2.1.14 Hordeum vulgare AAA18586.1
CAA33407.1
P11955
1CNS[A,B] 1.91
2BAA[A] 1.80
 chitinase (Cht2;OsChia1b;Cht-2;Os05g0399300;RCC2) 3.2.1.14 Oryza sativa Japonica Group BAA03750.1
BAF17390.1
BAS93903.1
CAA40107.1
Q43294
Q7DNA1
2DKV[A] 2.00
3IWR[A,B] 2.57
 chitinase (Chia4-Pa2;PaChi) 3.2.1.14 Picea abies AAQ17051.1
ACM89954.1
Q6WSR8
3HBD[A] 1.80
3HBE[X] 1.55
3HBH[A] 2.25
 chitinase C (RSC-c) 3.2.1.14 Secale cereale BAB18520.1 Q9FRV0
4DWX[A,B] 1.80
4DYG[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc
1.70
4J0L[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc
1.90
 chitinase (VuCYLP)   Vigna unguiculata BAC53632.1 Q8H0C9
3W3E[A,B] 1.50
 chitinase 3.2.1.14 Vigna unguiculata subsp. sesquipedalis AAG23965.1 Q9FUH3
4TX7[A] 1.55
 chitinase (ChiA) 3.2.1.14 Zea mays LH82 ACX37090.1 D0EM57
4MCK[A] 1.50
Viruses
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 endolysin (SPN1S_0028) 3.2.1.17 Salmonella phage SPN1S AEX26904.1  
4OK7[A,B,C] 1.90
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