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 (15992); Uniprot accession (3282); PDB accession (321); 3D entries (84); cryst (4)
All (14451) Archaea (61) Bacteria (10619) Eukaryota (3241) Viruses (293) unclassified (237) Structure (84 - 4 cryst) Characterized (477)
| 1 | ... | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
Eukaryota
Protein Name EC#OrganismGenBank UniprotPDB/3D
 Ech42 (fragment)   Trichoderma stromaticum GJS 07-79 ADP37520.1 E3W1U2  
 Ech42 (fragment)   Trichoderma stromaticum GJS 07-89 ADP37517.1 E3W1T9  
 Ech42 (fragment)   Trichoderma stromaticum GJS 07-91 ADP37538.1 E3W1W0  
 Ech42 (fragment)   Trichoderma stromaticum GJS 07-94 ADP37540.1 E3W1W2  
 Ech42 (fragment)   Trichoderma stromaticum GJS 97-180 ADP37507.1 E3W1S9  
 chi18-13 (partial)   Trichoderma tomentosum CBS 349.93 ADF57303.1 D6N0Y1  
 chitinase chi18-17   Trichoderma tomentosum CBS 349.93 ADF57314.1 D6N0Z9  
 chitinase (ChI) (fragment)   Trichoderma tomentosum CBS 349.93 ADX98515.1    
 endochitinase 42 (Ech42) (fragment)   Trichoderma tomentosum CBS 349.93 CPK97 AAV40910.1
AAM90612.1
Q8NK24  
 endochitinase 42 (Ech42)(fragment)   Trichoderma tomentosum JB G2034 JB DNA 265 CPK830 AAV40911.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma tomentosum TRS82 AJD86795.1    
 endochitinase 42 (fragment)   Trichoderma tomentosum ZD 28 AAU84849.1 Q53AR9  
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma velutinum 29.24.06.1 AJD86796.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma velutinum 30.24.06.3 AJD86798.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma velutinum 38.24.06.1 AJD86797.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma velutinum 38.24.06.3 AJD86799.1    
 endochitinase 42 (Ech42)(fragment)   Trichoderma velutinum DAOM 230013 TUB F-784 CPK298 AAV40908.1    
 endochitinase 42 (Ech42)(fragment)   Trichoderma velutinum DAOM 230014 TUB F-801 CPK312 AAV40909.1    
 endochitinase 42 (Ech42)(fragment)   Trichoderma velutinum HP2/B2A 282/HP2 CPK759 AAV40907.1    
 endochitinase 42 (Ech42) (fragment)   Trichoderma velutinum NP/B216 794/LP1 CPK758 AAV40906.1    
 endochitinase 42 (Ech42) (fragment)   Trichoderma velutinum NP1/A116 610/LP1 CPK757 AAV40905.1    
 endochitinase 42 (Ech42)(fragment)   Trichoderma velutinum NP1/B120 607/LP1 CPK756 AAV40904.1 Q53AS0  
 endochitinase 42 (fragment)   Trichoderma velutinum ZD 31 AAU84848.1 Q53AS0  
 endochitinase 42 (fragment)   Trichoderma velutinum ZD 42 AAU84847.1 Q53AS0  
 Ech42 (fragment)   Trichoderma vermipilum PPRI 3559 ADP37565.1 E3W949  
 Ech42 (fragment)   Trichoderma vermipilum TXM15 AIC81029.1    
 chitinase, partial (Ech42) (fragment)   Trichoderma virens AKI29470.1    
 class III chitinase (Cht1)   Trichoderma virens AAL78810.1
AAL84692.1
ACJ09605.1
Q8TFB0  
 class III chitinase (Cht2)   Trichoderma virens AAL78811.1
AAL84693.1
ABP96986.1
ACT66008.1
Q8TFA5  
 class V chitinase (Ech3)   Trichoderma virens AAL78812.1
AAL84697.1
AAL84698.1
Q8TFB3
Q8TG96
 
 class V chitinase (Ech2)   Trichoderma virens AAL78814.1
AAL84699.1
ACJ09604.1
Q8TF88  
 chitinase (Cht3)   Trichoderma virens ACI96032.1 B6V6U5  
 chitinase 33 (Chi33)   Trichoderma virens ACJ04784.1 B6VAX1  
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens 30.24.06.4 AJD86800.1    
 chitinase (Chi18-13)   Trichoderma virens CBS 249.59 ADF57302.1 D6N0Y0  
 endochitinase 42 (fragment)   Trichoderma virens DAOM 167651 AAG44829.1 Q9HF01  
 Ech42 (fragment)   Trichoderma virens DIS 162 ADP37575.1 E3W1Z7  
 endochitinase (Chit-G1) 3.2.1.14 Trichoderma virens FM-2 BAB40587.1 Q9C1U0  
 Ech42 (fragment)   Trichoderma virens GJS 01-287 ADP37574.1 E3W1Z6  
 endochitinase (Cht42;Ech1) 3.2.1.14 Trichoderma virens Gv29-8 AAL78813.1
AAC05829.1
CAJ34422.1
O59928
Q8TGW8
 
 Ech42   Trichoderma virens IABT 1002 ACA60750.1 B1PWE3  
 endochitinase (Ech42)   Trichoderma virens IMI304061 ABS82797.1 A7LM82  
 chitinase (Ech1)   Trichoderma virens T.v.223 AFD36221.1    
 chitinase (Ech2)   Trichoderma virens T.v.223 AFD36222.1    
 chitinase (Ech3)   Trichoderma virens T.v.223 AFD36223.1    
 endochitinase (Chit-G2) 3.2.1.14 Trichoderma virens TMI-61314 BAB40588.1 Q9C1T9  
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS106 AJD86802.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS107 AJD86809.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS108 AJD86805.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS109 AJD86803.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS110 AJD86801.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS112 AJD86808.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS114 AJD86807.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS116 AJD86810.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS117 AJD86806.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma virens TRS593 AJD86804.1    
 endochitinase (Ech1) 3.2.1.14 Trichoderma virens UKM-1 ABI30336.1
ABI30335.1
Q8TGW8  
 chitinase 3.2.1.14 Trichoderma viride (VARIOUS STRAINS) AAF19618.1
AAF19613.1
AAF19619.1
AAF19621.1
AAF19622.1
Q9UV39
Q9UV40
Q9UV42
Q9UV43
Q9UV48
 
 chitinase   Trichoderma viride 3.2876 AAG09447.1 Q9HG07  
 endochitinase (Chit46)   Trichoderma viride IABT1012 ABR21206.1 A6N6J1  
 chitinase (Chi42) 3.2.1.14 Trichoderma viride LTR-2 ABR27743.1 A6YNL9  
 endochitinase 42, partial (Ech42) (fragment)   Trichoderma viride NBAII Tv 23 AHF57046.1    
 endochitinase   Trichoderma viride T1#3 ACZ72934.2
ACZ72934.1
AGL13263.1
D2K848  
 Ech42 (fragment)   Trichoderma viride T51 ADN93308.1 E2FMQ8  
 endochitinase (Chit-VIRI)   Trichoderma viride TMI-60952 BAB40593.1 Q9C1T5  
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma viride TRS575 AJD86863.1    
 endochitinase, partial (Chi18-5) (fragment)   Trichoderma viride TV-15 ANW83051.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma viridescens TRS35 AJD86862.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma viridescens TRS573 AJD86860.1    
 chitinase 18-5, partial (Chi18-5) (fragment)   Trichoderma viridescens TRS574 AJD86861.1    
 endochitinase (Ech42) (fragment)   Trichoderma voglmayrii CBS117710 CPK1592 AAZ43195.1 Q107X4  
 chitinase (TYchi) 3.2.1.14 Trichosanthes kirilowii AAL01886.1 Q945U2  
 endochitinase (Chi2)   Trichothecium roseum AHJ60250.1    
 endochitinase (En39;Chi1;TrChi1) (fragment)   Trichothecium roseum AAS55702.1 Q6QAN1  
 chitinase (Chi1) 3.2.1.14 Trichothecium roseum ADV02752.1
ADV02751.1
   
 chitinase   Trifolium repens CAB43737.2 Q9XGB4  
 chitinase 3.2.1.14 Trifolium repens CAB65476.2 Q9SC03  
 xylanase inhibitor protein I (XipI;XIP-I;Xip)   Triticum aestivum CAD19479.1
ADB81849.1
AGN71004.1
Q8L5C6 1OM0[A]
1TA3[A]
1TE1[A]
 xylanase inhibitor (Xip-III)   Triticum aestivum BAD99103.1 Q4W6G2  
 xylanase inhibitor (Xip-R1)   Triticum aestivum BAF74363.1 A7BJ77  
 xylanase inhibitor (Xip-R2)   Triticum aestivum BAF74364.1 A7BJ78  
 Sequence 123618 from patent US 7214786   Triticum aestivum ABT36148.1    
 Sequence 123619 from patent US 7214786   Triticum aestivum ABT36149.1    
 TRAES_3BF104200070CFD_c1   Triticum aestivum CDM84667.1    
 TRAES_3BF103500040CFD_c1   Triticum aestivum CDM85086.1
CDM85087.1
   
 TRAES_3BF028500050CFD_c1   Triticum aestivum CDM83571.1
CDM82745.1
   
 TRAES_3BF104200030CFD_c1   Triticum aestivum CDM84663.1    
 TRAES_3BF104200060CFD_c1   Triticum aestivum CDM84666.1    
 TRAES_3BF104200050CFD_c1   Triticum aestivum CDM84665.1    
 TRAES_3BF030500100CFD_c1   Triticum aestivum CDM82941.1    
 TRAES_3BF030500090CFD_c1   Triticum aestivum CDM82942.1    
 TRAES_3BF104200020CFD_c1   Triticum aestivum CDM84662.1    
 TRAES_3BF104200080CFD_c1   Triticum aestivum CDM84668.1    
 TRAES_3BF103500030CFD_c1   Triticum aestivum CDM85085.1    
 Xip-II   Triticum turgidum subsp. durum CAC87260.1 Q8RVZ1  
 chitinase 2 3.2.1.14 Tulipa bakeri   Q7M443  
 bulb chitinase-1 (Tbc1)   Tulipa bakeri BAA88408.1 Q9SLP4  
 chitinase 3.2.1.14 Turritis glabra BAA21876.1 O22075  
 chitinase (fragment)   uncultured fungus AJD76187.1    
 chitinase 3.2.1.14 uncultured Neotyphodium AAP49451.1 Q7Z9Z5  
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