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Glycoside Hydrolase Family 19

Activities in FamilyChitinase (EC 3.2.1.14);
Lysozyme (EC 3.2.1.17);
[reducing end] exo-chitinase (EC 3.2.1.201);
Mechanism Inverting e
3D Structure Statuslysozyme fold
Catalytic Nucleophile/BaseNot known
Catalytic Proton DonorNot known
NoteContains chitinases of classes I, II, and IV.
External resourcesCAZypedia; HOMSTRAD; PROSITE;
Statistics GenBank accession (17368); Uniprot accession (131); PDB accession (38); 3D entries (22); cryst (0)
Summary
Download GH19 (16603) Taxonomic display Structure (22) Characterized (100)
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D Subf
 chitinase (pRYA1) (frameshift) 3.2.1.14 pubmed
 Aeromonas sp. 10S-24 BAA76716.1 Q9WXI9   2
 chitinase B (ChiB) 3.2.1.14 pubmed
 Burkholderia gladioli CHB101 BAA92252.1 Q9LBM0   2
 chitinase N (ChiN) 3.2.1.14 pubmed
 Chitiniphilus shinanonensis SAY3 BAK53965.1 F8WSX8   2
 chitinase I (Chi-1) 3.2.1.14 pubmed
 Niallia circulans KA-304 BAD92016.1 Q59I46   2
 chitinase (ChiB) 3.2.1.14 pubmed
 Nocardiopsis prasina OPC-131 BAC45252.1 Q8GI53   2
 chitinase (Chi19;PtChi19;PTD2_01021) 3.2.1.14 doi
 Pseudoalteromonas tunicata D2 / CCUG 44952T EAR30107.1 A4C3H5   2
 chitinase F (ChiF;SC5H1.29c;SCO7263) (Chi19F) 3.2.1.14 pubmed
 Streptomyces coelicolor A3(2) CAB42954.1
BAA75646.1
BAA84194.1
NP_631319.1		 Q9RHK9
Q9S6T0
Q9Z9M6		   2
 chitinase G (ChiG;SCO0482;SCF80.03;SCF34.01) (Chi19G) 3.2.1.14 pubmed
 Streptomyces coelicolor A3(2) CAD55444.1
BAA75648.1
CAB57191.1
NP_733504.1		 Q8CK55
Q9Z9M4		 2CJL[A,B] 2
 chitinase A (ChiA) 3.2.1.14 pubmed
 Streptomyces cyaneus SP-27 BAG55920.1 B3XZQ2   2
 chitinase C (ChiC) 3.2.1.14 pubmed
 Streptomyces griseus HUT 6037 BAA23739.1 O50152 1WVU[A,B]
1WVV[A,B]
2DBT[A,B,C] 		2
 chitinase (Chi30;Chit30) 3.2.1.14 pubmed
 Streptomyces olivaceoviridis ATCC 11238 CAB37321.1 Q9Z4P2   2
 chitinase IS (ChiIS) 3.2.1.14 pubmed
 Streptomyces sp. MG3 AAT27430.1 Q5J1K1   2
 chitinase (Chi25) 3.2.1.14 pubmed
 Streptomyces thermoviolaceus OPC-520 BAA88834.1 Q9RHU4   2
 chitinase (Chi35) 3.2.1.14 pubmed
 Streptomyces thermoviolaceus OPC-520 BAA88833.1 Q9RHU5   2
 chitinase (reducing end-specific) 3.2.1.201 pubmed
 Vibrio proteolyticus BAE86996.1 Q25BT4   2
Eukaryota
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D Subf
 At3g12500 (chitinase B;ChiB;Pr3) (basic) 3.2.1.14 pubmed
 Arabidopsis thaliana AAA32769.1
AAG21643.1
AAG51023.1
AAK96819.1
AAM10081.1
AEE75203.1
BAA82810.1
BAA82811.1
BAA82812.1
BAA82813.1
BAA82814.1
BAA82815.1
BAA82816.1
BAA82817.1
BAA82818.1
BAA82819.1
BAA82820.1
BAA82821.1
BAA82822.1
BAA82823.1
BAA82824.1
BAA82825.1
BAB03157.1
NP_187856.1
NP_566426.1		 A0A5S9XBN8
P19171		   2
 chitinase IV5 (ChitIV5;CHIV;CHI-IV;AtChitIV5;AtChitIV;AtEP3;At3g54420) 3.2.1.14 pubmed
 Arabidopsis thaliana CAA74930.1
AAQ62423.1
AEE79228.1
BAD44251.1
CAB81807.1
NP_191010.1		 A0A178VE44
O23248
Q9M2U5		   2
 chitinase IV4 (ChitIV4;AtChitIV4;At2g43610) 3.2.1.14 pubmed
 Arabidopsis thaliana AAB64045.1
AAL62349.1
AAM48043.1
AEC10295.1
NP_181889.1		 O22842   2
 chitinase IV3 (ChitIV3;AtChitIV3;At2g43590) 3.2.1.14 pubmed
 Arabidopsis thaliana AAB64047.1
AAB64320.1
AAM14810.1
AAP88360.1
AEC10293.1
BAF00136.1
NP_181887.1		 A0A654F2Y0
O24658		   2
 chitinase IV1 (ChitIV1;AtChitIV1;At2g43570) 3.2.1.14 pubmed
 Arabidopsis thaliana AAB64049.1
AAB64318.1
AAM14808.1
AAM20661.1
AAO30080.1
AEC10291.1
BAE98366.1
NP_181885.1		 A0A178W3M3
O24603		   2
 DS421_19g649650 (chitinase 2.1) 3.2.1.14 pubmed
 Arachis hypogaea QHN77092.1
ADF87393.1
CAA40208.1
CAA57773.1		 D8V5S2
Q06014
Q43322		   2
 chitinase (Ch1;Chi2;Chi3) 3.2.1.14 pubmed
 Brassica juncea AAF02299.1
ABC04842.1		 Q9SQF7 2Z37[A,B,C,D]
2Z38[A]
2Z39[A,B] 		2
 chitinase B4 3.2.1.14 pubmed
 Brassica napus CAA43708.1
AAK14960.1		 Q06209
Q9AUF7		   2
 chitinase (BiCht1) 3.2.1.14 pubmed
 Bromus inermis BAG12896.1 B1B6T0   2
 chitinase 3.2.1.14 pubmed
 Canavalia ensiformis CAA07413.1 O81934 1DXJ[A] 2
 lysozyme / chitinase (major) (partial) 3.2.1.14 pubmed
 Carica papaya   P81241
P85084		 3CQL[B]
3CQL[A] 		2
 chitinase 1B (ChiA1;Cas s 5) 3.2.1.14 pubmed
 Castanea sativa CAA64868.1
AAB01895.1
ADN39439.1		 E3SEU0
Q42428		   2
 chitinase (Cap9) 3.2.1.14 doi
 Chenopodium amaranticolor BAA22965.1 O23803   2
 chitinase (Cam18) 3.2.1.14 doi
 Chenopodium amaranticolor BAA22966.1 O23804   2
 chitinase (Cam19) 3.2.1.14 doi
 Chenopodium amaranticolor BAA22967.1 O23805   2
 chitinase (Cam24) 3.2.1.14 doi
 Chenopodium amaranticolor BAA22968.1 O23806   2
 chitinase 3.2.1.14 pubmed
 Citrus sinensis CAA93847.1 Q43752   2
 chitinase (SafchiA) 3.2.1.14 doi
 Crocus sativus ACC68684.1 B5L6N2   2
 chitinase 2 (Chi2) 3.2.1.14 pubmed
 Cucumis melo AAF64475.1
AAF69836.1		 Q9LE03   2
 chitinase (ChiA4;Ep3;EP3-1/H5) 3.2.1.14 pubmed
 Daucus carota AAC49435.1 Q96408   2
 chitinase (EP3B/E6) 3.2.1.14   Daucus carota AAB08470.1 Q96411   2
 chitinase I (Chit1) 3.2.1.14 pubmed
 Dionaea muscipula AHB62682.1
AAT66917.1
AFH78563.1
ALO61073.1		 I0CMI2
Q6DUJ9
V5TEI0		   2
 chitinase 3.2.1.14 pubmed
 Dioscorea oppositifolia BAC56863.1
ABJ31179.1		 Q852P9   2
 chitinase B (ChiB) 3.2.1.14 pubmed
 Ficus microcarpa BCS90539.1 A0A915Q9K6
A0A915Q9K7		 7V91[A,B,C,D]
7V92[A,B,C,D] 		2
 chitinase A (ChiA;BcChiA;BcChi-A) 3.2.1.14 pubmed
 Gemmabryum coronatum BAF99002.1 A9ZSX9 3WH1[A]
4IJ4[A]
7F88[A,B,C] 		2
 chitinase (ChiA1;ChN1) 3.2.1.14 pubmed
 Glycine max AAK01734.1
AAF17593.1		 Q9SDY6   2
 chitinase 3.2.1.14 pubmed
 Gossypium hirsutum CAA92277.1 P93154   2
 chitinase-26 (Chi26) 3.2.1.14 pubmed
 Hordeum vulgare AAA32941.1
AAA56786.1
AAE52538.1
BAK08350.1
CAA02316.1		 F2ELX8
P23951		   2
 chitinase (KB1) 3.2.1.14 pubmed
 Leucaena leucocephala DE WIT (LEUCOPLAST) AAM49597.2 Q8MD06   2
 class Ib chitinase (Chi31;LbChi31) 3.2.1.14 pubmed
 Limonium bicolor ACE79210.1
ABD92819.1		 B3VFX0
Q1W6C5		   2
 class I chitinase (Chi32;LbCHI32) 3.2.1.14 pubmed
 Limonium bicolor ABD92820.1
ACE79211.1		 B3VFX1
Q1W6C4		   2
 chitinase 1 (ChiA;McChit1) 3.2.1.14 pubmed
 Momordica charantia ABD66068.1 Q207U1   2
 chitinase (Chi-1;MpChi-1) 3.2.1.14 pubmed
 Musa x paradisiaca ABD47583.1 Q2HJJ5   2
 class IV chitinase (NaChit1;NaCHIT1) 3.2.1.14 pubmed
 Nepenthes alata BAF98919.1 A9ZMK1   2
 endochitinase (ChnB) 3.2.1.14 pubmed
 Nicotiana sylvestris CAC17793.1 Q9FEW1   2
 chitinase A (ChiA;Chn48;CHN A) 3.2.1.14 pubmed
 Nicotiana tabacum CAA34812.1
AAB23374.1
ABC04847.1
CAA01356.2
CAA01530.1
CAA34813.1		 P08252   2
 chitinase 3.2.1.14 pubmed
 Nicotiana tabacum AAA34106.1
AAE52537.1
CAA35790.1		 P17513   2
 chitinase 3.2.1.14 pubmed
 Nicotiana tabacum AAA34107.1
ABC04848.1
CAA35789.1		 P17514   2
 chitinase B (ChiB;Chn50;Chn200) 3.2.1.14 pubmed
 Nicotiana tabacum CAA35945.1
AAA34070.1
AAE52534.1
CAA01263.1
CAA45822.1		 P24091   2
 chitinase 134 3.2.1.14 pubmed
 Nicotiana tabacum BAA33971.1 Q9ZWS3   2
 chitinase (OsChi) 3.2.1.14 pubmed
 Oryza sativa Indica Group CPSLO17 ABU25226.1 A7UC81   2
 chitinase (Rcht2) 3.2.1.14 pubmed
 Oryza sativa Indica Group IR36 AAL34317.1 Q8W4Z2   2
 chitinase (Cht11) 3.2.1.14 doi
 Oryza sativa Indica Group IR36 AAB58239.1 O04272   2
 chitinase 3.2.1.14 pubmed
 Oryza sativa Indica Group IR36 CAA60590.1 Q42995   2
 chitinase (ChiA1) 3.2.1.14 pubmed
 Oryza sativa IR24 AAN93816.1
AAN93817.1
BAA25638.1		 O64451
Q9SAY3		   2
 chitinase (Cht7;ChiA1d;Os05g0399700) 3.2.1.14 pubmed
 Oryza sativa Japonica Group BAC76690.1
AAT85136.1
AAU10808.1
BAF17392.1
BAG92366.1
BAS93905.1		 Q7Y1Z1   2
 chitinase (Chia2b;Cht4;Os04g0493400) 3.2.1.14 pubmed
 Oryza sativa Japonica Group CAD41540.2
BAA19793.1
BAB21374.1
BAB21377.1
BAF15098.1
BAG94383.1
BAS89866.1
CAD41539.1		 O04138
Q7FAU0
Q7GC32
Q7XU64		   2
 chitinase (Cht8;Chia2a;Rcht2;Os10g0542900) 3.2.1.14 pubmed
 Oryza sativa Japonica Group AAG13608.1
AAP54865.1
BAA31997.1
BAF27110.1
BAG91751.1
BAT11881.1		 O80423
Q7XCK6		   2
 chitinase (Cht1;Chia1a;Cht-1;P0017G10.4;P0548E04.24;Os06g0726200) 3.2.1.14 pubmed
 Oryza sativa Japonica Group BAA03749.1
ABL74564.1
BAD61709.1
BAD61801.1
BAS99596.1
CAA39535.1		 Q42993   2
 chitinase (Cht3;Chia1c;Cht-3;Os06g0726100) 3.2.1.14 pubmed
 Oryza sativa Japonica Group BAA03751.1
ADM86858.1
BAD61708.1
BAD61800.1
BAF20540.1
BAG87832.1
BAS99595.1
CAA38249.1		 B7E635
P24626
Q0D9D3		   2
 chitinase (Cht2;OsChia1b;Cht-2;Os05g0399300;RCC2) 3.2.1.14 pubmed
 Oryza sativa Japonica Group BAA03750.1
BAF17390.1
BAS93903.1
CAA40107.1		 A0A0P0WM49
Q43294
Q7DNA1		 2DKV[A]
3IWR[A,B] 		2
 chitinase (Cht11;Os03g0132900) 3.2.1.14 doi
 Oryza sativa Japonica Group BAF10785.1
BAG94083.1
BAS82154.1		 Q10S66   2
 class 1 chitinase (Chi-1;SBF1;SBF2) 3.2.1.14 pubmed
 Panax ginseng ACN96317.1 C1K2M3   2
 chitinase (Chi1) 3.2.1.14 pubmed
 Persea americana CAB01591.1 P93680   2
 chitinase (Chi2-2) 3.2.1.14 pubmed
 Petroselinum crispum AAD54936.1 Q9SPT8   2
 chitinase (Chi2-1) 3.2.1.14 pubmed
 Petroselinum crispum AAD54935.1 Q9SPT9   2
 chitinase (Chi1) 3.2.1.14 pubmed
 Petroselinum crispum AAD54934.1 Q9SPU0   2
 chitinase-4 3.2.1.14 pubmed
 Phaseolus vulgaris ABC04849.1
CAA40474.1		 P27054   2
 chitinase (Chia4-Pa2;PaChi) 3.2.1.14 pubmed
 Picea abies AAQ17051.1
ACM89954.1		 C0JR28
Q6WSR8		 3HBD[A]
3HBE[X]
3HBH[A] 		2
 class I chitinase (Chia1-2;PgeChia1-2) 3.2.1.14 pubmed
 Picea engelmannii x Picea glauca AEF59000.1 G9B4E3   2
 class I chitinase (Chia1-1;PgeChia1-1) 3.2.1.14 pubmed
 Picea engelmannii x Picea glauca AEF58999.1 G9B4E2   2
 class I chitinase (Chia1-1;PcChia1-1) 3.2.1.14 pubmed
 Pinus contorta AEF59005.1
QEL09554.1		 A0A5C0ZUN3
G9B4E8		   2
 chitinase 2 3.2.1.14 pubmed
 Pisum sativum AAA75196.1 P21226   2
 chitinase A (RsC-A) 3.2.1.14 pubmed
 Secale cereale BAB18519.1 Q9FRV1   2
 chitinase C (RSC-c) 3.2.1.14 pubmed
 Secale cereale BAB18520.1 Q9FRV0 4DWX[A,B]
4DYG[A,B]
4J0L[A] 		2
 endochitinase-antifreeze protein (Cht46) 3.2.1.14 pubmed
 Secale cereale AAG53610.1 Q9AXR8   2
 endochitinase-antifreeze protein (Cht9) 3.2.1.14 pubmed
 Secale cereale AAG53609.1 Q9AXR9   2
  chitinase 3.2.1.14 pubmed
 Simarouba glauca     6LNR[A] 2
 chitinase A 3.2.1.14 pubmed
 Solanum chilense AAA64999.1
AAA64998.1		 Q40114   2
 chitinase (Sk2) 3.2.1.14 pubmed
 Solanum tuberosum CAA47921.1 Q43184   2
 chitinase II (Cht2) 3.2.1.14 pubmed
 Triticum aestivum AAD28730.1
SPT18894.1		 Q9XEN3   2
 chitinase / agglutinin isolectin I (Uda1;UDA) 3.2.1.14 pubmed
 Urtica dioica AAA34219.1
AAB23919.1
AAD03614.1
AAE52532.1
ABC04850.1		 P11218
Q9SYR1		   2
 chitinase 3.2.1.14 pubmed
 Vigna unguiculata subsp. sesquipedalis AAG23965.1 Q9FUH3 4TX7[A] 2
 chitinase B (Chit1B) 3.2.1.14 pubmed
 Vitis vinifera CAA90970.1 P51613
Q546P8		   2
 chitinase (Chit1A; VITISV_016509) 3.2.1.14 pubmed
 Vitis vinifera CAC14014.1
ABB53242.1
ABD64683.1
ABD64684.1
CAN76701.1		 A3QRB6
A3QRB7
P51613
Q546P8		   2
 chitinase B (ChitB) 3.2.1.14 pubmed
 Zea mays AAA33445.1 P29023   2
 chitinase A (ChitA;ChitA-B73;GRMZM2G051943) 3.2.1.14 pubmed
 Zea mays B73 AAA33444.1
ACF85519.1
ACF88402.1		 B4FTS6
P29022		   2
 chitinase (ChiA) 3.2.1.14 pubmed
 Zea mays LH82 ACX37090.1 D0EM57
P29022		 4MCK[A] 2
unclassified
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D Subf
 chitinase (Anc4) 3.2.1.14 doi
 synthetic construct     8X2V[A]
8X2W[A]
8HNE[A] 		2
 chitinase (Anc5) 3.2.1.14 doi
 synthetic construct     8HNF[A] 2
Viruses
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D Subf
 endolysin (LysAB2) 3.2.1.17 pubmed
 Acinetobacter phage phiAB2 ADX62345.1 F1BCP4   1
 endolysin (ABgp46) 3.2.1.17 pubmed
 Acinetobacter phage vB_AbaP_CEB1 ALC76575.1 A0A0M4F9K9   1
 lysozyme (Gp69;ORF69) 3.2.1.17 doi
 Microcystis virus Ma-LMM01 BAF36160.1 A0A7I3   1
 endolysin 3.2.1.17 doi
 Pseudomonas phage BL3 WPF70486.1   8P8E[A] 1
 endolysin (SPN1S_0028) 3.2.1.17 pubmed
 Salmonella phage SPN1S AEX26904.1 H2D0G4 4OK7[A,B,C] 1
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