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)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Eukaryota
Protein Name EC#OrganismGenBank UniprotPDB/3D
 class Ia chitinase (Chit1A)   Acacia koa AFY08283.1    
 class Ib chitinase (Chit1B)   Acacia koa AFY08284.1    
 class II chitinase (Chit2)   Acacia koa AFY08285.1    
 chitinase   Acacia mangium BAO45893.1    
 secreted protein   Achlya hypogyna ATCC 48635 AIG56150.1    
 class IV chitinase (Chi4)   Actinidia chinensis AET25429.1    
 chitinase   Actinidia chinensis AGS80329.1    
 chitinase   Actinidia eriantha AGS80332.1    
 chitinase   Actinidia eriantha AGS80333.1    
 chitinase 1 (Chi1)   Aegiceras corniculatum AFK26307.1    
 ORF (fragment)   Allium cepa AIS72983.1    
 chitinase 1 3.2.1.14 Allium sativum AAA32641.1 Q38777  
 chitinase 2 3.2.1.14 Allium sativum AAA32640.1 Q38776  
 chitinase (Pr3) (fragment)   Alnus glutinosa CAD21437.1 Q710B9  
 chitinase C (ChiC;PlChiC)   Ananas comosus BAF47270.1 A2V800  
 class I chitinase-1, partial (Chiti-1) (fragment)   Ancistrocladus grandiflorus AFH78556.1    
 Chiti-2 (fragment)   Ancistrocladus grandiflorus AFH78557.1    
 class I chitinase-1, partial (Chiti-1) (fragment)   Ancistrocladus robertsoniorum AFH78558.1    
 Chiti-2 (fragment)   Ancistrocladus robertsoniorum AFH78559.1    
 H257_04901   Aphanomyces astaci APO3 ETV82190.1    
 H257_19451 (fragment)   Aphanomyces astaci APO3 ETV63620.1    
 chitinase (ChiB) 3.2.1.14 Arabidopsis halleri subsp. gemmifera BAA82826.1 Q9SXJ1  
 At3g12500 (chitinase B;ChiB;Pr3) (basic) 3.2.1.14 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
P19171  
 chitinase IV5 (ChitIV5;CHIV;CHI-IV;AtChitIV5;AtChitIV;AtEP3;At3g54420) 3.2.1.14 Arabidopsis thaliana CAA74930.1
AAQ62423.1
AEE79228.1
BAD44251.1
CAB81807.1
NP_191010.1
O23248
Q9M2U5
 
 At2g43620   Arabidopsis thaliana AAB64044.1
AEC10296.1
NP_181890.1
O22841  
 chitinase IV4 (ChitIV4;AtChitIV4;At2g43610) 3.2.1.14 Arabidopsis thaliana AAB64045.1
AAL62349.1
AAM48043.1
AEC10295.1
NP_181889.1
O22842  
 At2g43600   Arabidopsis thaliana AAB64046.1
AAB64321.1
AAM14809.1
AEC10294.1
ANM62736.1
NP_181888.1
O24654  
 chitinase IV3 (ChitIV3;AtChitIV3;At2g43590) 3.2.1.14 Arabidopsis thaliana AAB64047.1
AAB64320.1
AAM14810.1
AAP88360.1
AEC10293.1
BAF00136.1
NP_181887.1
O24658  
 At2g43580 (ChitIV2;AtChitIV2)   Arabidopsis thaliana AAB64048.1
AAB64319.1
AAM14811.1
AAP12878.1
AEC10292.1
BAC43195.1
NP_181886.1
O24598  
 chitinase IV1 (ChitIV1;AtChitIV1;At2g43570) 3.2.1.14 Arabidopsis thaliana AAB64049.1
AAB64318.1
AAM14808.1
AAM20661.1
AAO30080.1
AEC10291.1
BAE98366.1
NP_181885.1
O24603  
 At4g01700   Arabidopsis thaliana AAC72865.1
AAO23634.1
AEE82066.1
BAE99588.1
CAB77740.1
NP_192079.1
Q9ZSI6  
 At3g47540   Arabidopsis thaliana ABK32188.1
AEE78294.1
AEE78295.1
BAC43319.1
CAB61980.1
NP_190338.1
Q8GWP2
Q9SN84
 
 At1g05850 (Ctl1;Hot2;Elp1;Pom1;CHITINASE-LIKE1;POM-POM1)   Arabidopsis thaliana AAF29391.1
AAG48821.1
AAK59442.1
AAL37736.1
AAL37737.1
AAM44973.1
AEE27904.1
ANM59031.1
BAH30273.1
NP_172076.1
Q42042
Q9MA41
 
 At3g16920 (Ctl2;AtCTL2;CTL1-like)   Arabidopsis thaliana BAA94976.1
AAL06524.1
AAL90922.1
AEE75884.1
AEE75884.2
ANM65458.1
BAE98469.1
NP_188317.1
Q9LSP9  
 At1g02360   Arabidopsis thaliana AAG00887.1
AAT06417.1
AAT41815.1
ACH13174.1
AEE27420.1
ANM61189.1
ANM61190.1
NP_171738.1
Q9FZ25  
 At1g56680   Arabidopsis thaliana AAG09096.1
AAO42897.1
AEE33422.1
ANM57798.1
BAC43059.1
NP_176061.1
Q8GX41
Q9FXB8
 
 chitinase (fragment)   Arabis alpina AAF69768.1 Q9M7H9  
 chitinase (fragment)   Arabis blepharophylla AAF69774.1 Q9M7H3  
 chitinase   Arabis blepharophylla AAF69773.1 Q9M7H4  
 chitinase (fragment)   Arachis hypogaea ACX83614.1 D3U314  
 chitinase 2.1 3.2.1.14 Arachis hypogaea CAA57773.1
ADF87393.1
Q43322  
 chitinase 2.2 3.2.1.14 Arachis hypogaea CAA57774.1
AEO14153.1
AEO14154.1
Q42515  
 chitinase 2 (fragment)   Arachis hypogaea CAA40208.1 Q06014  
 chitinase 3 (fragment)   Arachis hypogaea CAA40211.1 Q06015  
 chitinase 4 (fragment)   Arachis hypogaea CAA40212.1 Q06016  
 chitinase A (fragment)   Arachis hypogaea CAA40209.1 Q06012  
 chitinase B (fragment)   Arachis hypogaea CAA40210.1 Q06013  
 chitinase-like protein (partial)   Artemisia annua ABJ74186.1 A0A3A1  
 ORF   Ascaris suum AAK93964.1
ADY40190.1
ADY42126.1
Q962Y5  
 chitinase (Chi1;BoCHI1) 3.2.1.14 Bambusa oldhamii AAR18735.1 Q6SPQ7  
 chitinase (Ch1) 3.2.1.14 Beta vulgaris CAA01693.1
ABC04851.1
CAA55883.1
CAA56946.1
Q42421  
 chitinase 4 (Ch4) 3.2.1.14 Beta vulgaris CAA53544.1
CAA01677.1
   
 chitinase (SP2) 3.2.1.14 Beta vulgaris AAA32916.1 P42820  
 chitinase   Boechera fecunda AAF69777.1 Q9M7H0  
 chitinase (fragment)   Boechera fecunda AAF69776.1 Q9M7H1  
 chitinase (fragment)   Boechera gunnisoniana AAF69781.1 Q9M7G6  
 chitinase (fragment)   Boechera gunnisoniana AAF69772.1 Q9M7H5  
 chitinase (fragment)   Boechera holboellii AAF69771.1 Q9M7H6  
 chitinase (fragment)   Boechera holboellii AAF69770.1 Q9M7H7  
 chitinase (fragment)   Boechera lemmonii AAF69784.1 Q9M7G3  
 chitinase (fragment)   Boechera lemmonii AAF69783.1 Q9M7G4  
 chitinase (fragment)   Boechera lignifera AAF69787.1 Q9M7G0  
 chitinase (fragment)   Boechera lignifera AAF69786.1 Q9M7G1  
 chitinase (fragment)   Boechera lignifera AAF69785.1 Q9M7G2  
 chitinase (fragment)   Boechera lyallii AAF69788.1 Q9M7F9  
 chitinase (fragment)   Boechera microphylla AAF69791.1 Q9M7F6  
 chitinase (fragment)   Boechera microphylla AAF69790.1 Q9M7F7  
 chitinase (fragment)   Boechera microphylla AAF69789.1 Q9M7F8  
 chitinase   Boechera parishii AAF69793.1 Q9M7F4  
 chitinase   Boechera parishii AAF69792.1 Q9M7F5  
 At3g12500-like protein (fragment)   Boechera stricta ABB89767.1 Q1L0Q6  
 chitinase (fragment)   Boechera stricta AAF69775.1 Q9M7H2  
 chitinase (fragment)   Boechera stricta AAF69769.1 Q9M7H8  
 chitinase   Boehmeria nivea ALG38348.1    
 chitinase (fragment)   Brassica juncea AAL77433.1 Q8SA44  
 chitinase (fragment)   Brassica juncea ABC94640.1 Q2HZ51  
 chitinase (Ch1;Chi2;Chi3) 3.2.1.14 Brassica juncea AAF02299.1
ABC04842.1
Q9SQF7 2Z37[A,B,C,D]
2Z38[A]
2Z39[A,B]
 chitinase 3.2.1.14 Brassica napus AAK62047.1
AAB01665.1
Q43391
Q94C47
 
 chitinase-25 3.2.1.14 Brassica napus AAA32986.1 Q09023  
 chitinase B4 3.2.1.14 Brassica napus CAA43708.1
AAK14960.1
Q06209
Q9AUF7
 
 chitinase (fragment)   Brassica napus AAK14961.1 Q9AUF6  
 chitinase 2 (fragment)   Brassica napus AAK49400.1 Q94KW2  
 chitinase 1 (fragment)   Brassica napus AAK49399.1 Q94KW3  
 chitinase (fragment)   Brassica oleracea AAK14962.1 Q9AUF5  
 chitinase 1 (fragment)   Brassica oleracea AAK49402.1 Q94KW0  
 BrCLP1   Brassica rapa ABV89613.1    
 BrCLP2   Brassica rapa ABV89660.1    
 BrCLP3 (fragment)   Brassica rapa ABV89661.1    
 chitinase (fragment)   Brassica rapa AAK14963.1 Q9AUF4  
 chitinase 1 (fragment)   Brassica rapa AAK49401.1 Q94KW1  
 chitinase (BcchI)   Brassica rapa subsp. chinensis BAH03380.1
BAH82668.1
B7X6W0  
 endochitinase (BcEnchI)   Brassica rapa subsp. chinensis BAK48742.1    
 chitinase (fragment)   Brassica rapa subsp. pekinensis AAN23109.1 Q8H6J6  
 chitinase 1 (Chi1)   Brassica rapa subsp. pekinensis AGC73657.1    
 chitinase (Chb4)   Brassica rapa subsp. pekinensis BAF35569.1 Q05K38  
 chitinase (BiCht1) 3.2.1.14 Bromus inermis BAG12896.1 B1B6T0  
 pathogenesis related gene 3 (Pr3)   Bupleurum kaoi CBJ55936.1    
 C08B6.4   Caenorhabditis elegans Bristol N2 CAH19081.1
CAA96587.1
NP_505600.1
Q17816
Q65ZB0
 
 C51E3.8   Caenorhabditis elegans Bristol N2 CAB01643.1
NP_505607.1
O01981  
 T05H4.7   Caenorhabditis elegans Bristol N2 AAB66013.1
CCD72033.1
NP_504628.1
O16512  
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