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 (15610); Uniprot accession (3282); PDB accession (318); 3D entries (84); cryst (4)
All (14070) Archaea (61) Bacteria (10316) Eukaryota (3181) Viruses (261) unclassified (251) Structure (84 - 4 cryst) Characterized (477)
| 1 | ... | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | ... | 104 |
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D
 AK40_4582 (Chia1)   Bacillus cereus 03BB108 AJI13961.1    
 AK40_2311   Bacillus cereus 03BB108 AJI13082.1    
 AK40_2023   Bacillus cereus 03BB108 AJI13098.1    
 NT98_1938   Bacillus cereus 03BB87 AIY74009.1    
 NT98_2241   Bacillus cereus 03BB87 AIY75486.1    
 NT98_2054   Bacillus cereus 03BB87 AIY77987.1    
 NT98_5143 (Chia1)   Bacillus cereus 03BB87 AIY78223.1    
 B5E38_0615   Bacillus cereus 25 ARO58227.1    
 B5E38_0745   Bacillus cereus 25 ARO58348.1    
 B5E38_0413   Bacillus cereus 25 ARO58038.1    
 B5E38_4876   Bacillus cereus 25 ARO62299.1    
 chitinase CW (ChiCW) 3.2.1.14 Bacillus cereus 28-9 AAM48520.2 Q8KVU8  
 chitinase CH (ChiCH) 3.2.1.14 Bacillus cereus 28-9 AAP47142.1 Q7X4L4  
 B5E39_2480   Bacillus cereus 29 ARO64866.1    
 B5E39_4932   Bacillus cereus 29 ARO67110.1    
 B5E39_4213   Bacillus cereus 29 ARO66450.1    
 B5E39_4341   Bacillus cereus 29 ARO66569.1    
 BG11_3302   Bacillus cereus 3a AJH63068.1    
 BG11_333   Bacillus cereus 3a AJH61110.1    
 BG11_48   Bacillus cereus 3a AJH62048.1    
 BG11_161   Bacillus cereus 3a AJH64621.1    
 chitinase B   Bacillus cereus 49 ADD71157.1 D4P2Z4  
 chitinase A   Bacillus cereus 53 ACY39280.1 D0VV11  
 chitinase B   Bacillus cereus 53 ADD91322.1 D4P4Z1  
 chitinase A   Bacillus cereus 79 ACY39279.1 D0VV10  
 DA68_12785   Bacillus cereus A1 ANE86486.1    
 DA68_14150   Bacillus cereus A1 ANE86749.1    
 DA68_25510   Bacillus cereus A1 ANE88841.1    
 DA68_27065   Bacillus cereus A1 ANE89344.1    
 DA68_14690   Bacillus cereus A1 ANE86854.1    
 BCAH187_A3775   Bacillus cereus AH187 ACJ78831.1 B7HKT0  
 BCAH187_A3458 (probable fragment)   Bacillus cereus AH187 ACJ79657.1 B7HZ11  
 BCAH187_A3633 (fragment) (frameshift)   Bacillus cereus AH187 ACJ79830.1 B7I055  
 BCAH187_A0498   Bacillus cereus AH187 ACJ81338.1 B7HT80  
 BCAH820_3618   Bacillus cereus AH820 ACK91613.1 B7JI36  
 BCAH820_3443   Bacillus cereus AH820 ACK90848.1 B7JGA5  
 BCAH820_0428   Bacillus cereus AH820 ACK90685.1 B7JN80  
 BCAH820_3736 (fragment)   Bacillus cereus AH820 ACK91888.1 B7JJ02  
 BCAH820_3735 (Chi36) (fragment)   Bacillus cereus AH820 ACK92499.1 B7JJ01  
 cortex-lytic enzyme SleL   Bacillus cereus ATCC 10876 KFL63465.1   4S3J[A]
 BCE0497   Bacillus cereus ATCC 10987 AAS39432.1
NP_976824.1
Q73E63  
 BCE3753 (Chi36)   Bacillus cereus ATCC 10987 AAS42658.1
NP_980050.1
Q733A7  
 BCE3627   Bacillus cereus ATCC 10987 AAS42532.1
NP_979924.1
Q733N1  
 exochitinase (BC3725) 3.2.1.14 Bacillus cereus ATCC 14579 AAP10651.1
NP_833450.1
Q81A65  
 BC3607   Bacillus cereus ATCC 14579 AAP10540.1
NP_833339.1
Q81AG3  
 endochitinase (BC0429)   Bacillus cereus ATCC 14579 AAP07469.1
NP_830268.1
Q81IF9  
 BF35_4756   Bacillus cereus ATCC 4342 AJH74551.1    
 BF35_4454   Bacillus cereus ATCC 4342 AJH75086.1    
 BF35_4570   Bacillus cereus ATCC 4342 AJH74593.1    
 BF35_2245 (Chia1)   Bacillus cereus ATCC 4342 AJH72875.1    
 chitinase B   Bacillus cereus B25 ALA99165.1    
 chitinase A   Bacillus cereus B25 ALA99164.1    
 BCB4264_A3824 (Chi36)   Bacillus cereus B4264 ACK59852.1 B7HCJ4  
 BCB4264_A0450   Bacillus cereus B4264 ACK63242.1 B7H7I4  
 BCB4264_A3431   Bacillus cereus B4264 ACK58969.1 B7H6G1  
 BCB4264_A3715   Bacillus cereus B4264 ACK62992.1 B7HAX9  
 chitinase   Bacillus cereus BC-10 AIU96331.1    
 chitinase, partial (fragment)   Bacillus cereus BC-18 AIU96335.1    
 B2J90_18725   Bacillus cereus BC-AK ARO19383.1    
 B2J90_02250   Bacillus cereus BC-AK ARO16417.1    
 B2J90_18110   Bacillus cereus BC-AK ARO19269.1    
 CPZ31_18115   Bacillus cereus BHU1 ATI60789.1    
 CPZ31_02045   Bacillus cereus BHU1 ATI57850.1    
 CPZ31_17150   Bacillus cereus BHU1 ATI60609.1    
 CPZ31_18660   Bacillus cereus BHU1 ATI60890.1    
 CPZ32_26480   Bacillus cereus BHU2 ATI53663.1    
 CPZ32_27390   Bacillus cereus BHU2 ATI53826.1    
 CPZ32_00080   Bacillus cereus BHU2 ATI48876.1    
 CPZ32_11540   Bacillus cereus BHU2 ATI50955.1    
 BACI_c04380 (ChiA)   Bacillus cereus biovar anthracis str. CI ADK03172.1 D8GZR3  
 BACI_c35530   Bacillus cereus biovar anthracis str. CI ADK06167.1 D8H6N4  
 BACI_c33820   Bacillus cereus biovar anthracis str. CI ADK05997.1 D8H5T0  
 BACI_c36740   Bacillus cereus biovar anthracis str. CI ADK06287.1 D8H7D6  
 chitinase   Bacillus cereus C-13 AIU96330.1    
 CK938_02405   Bacillus cereus CC-1 ASZ15549.1    
 CK938_08935   Bacillus cereus CC-1 ASZ16721.1    
 CK938_10545   Bacillus cereus CC-1 ASZ17015.1    
 CK938_09650   Bacillus cereus CC-1 ASZ16854.1    
 chitinase B (ChiB) 3.2.1.14 Bacillus cereus CH BAB16891.1 Q9FAC8  
 chitinase A (ChiA) 3.2.1.14 Bacillus cereus CH BAB16890.1 Q9FAC9  
 WR51_02250   Bacillus cereus CMCC P0011 ANC11812.1    
 WR51_17360   Bacillus cereus CMCC P0011 ANC14607.1    
 WR51_18465   Bacillus cereus CMCC P0011 ANC14819.1    
 WR51_19120   Bacillus cereus CMCC P0011 ANC14943.1    
 WR47_17360   Bacillus cereus CMCC P0021 ANC08790.1    
 WR47_19120   Bacillus cereus CMCC P0021 ANC09126.1    
 WR47_18465   Bacillus cereus CMCC P0021 ANC09002.1    
 WR47_02300   Bacillus cereus CMCC P0021 ANC05985.1    
 BA203_02210   Bacillus cereus D12_2 ASI71045.1    
 BA203_17325   Bacillus cereus D12_2 ASI73871.1    
 BA203_17905   Bacillus cereus D12_2 ASI73982.1    
 BA203_16340   Bacillus cereus D12_2 ASI73682.1    
 AW22_4266 (Chia1)   Bacillus cereus D17 AJG59074.1    
 AW22_961   Bacillus cereus D17 AJG58519.1    
 AW22_1259   Bacillus cereus D17 AJG59327.1    
 AW22_1090   Bacillus cereus D17 AJG59770.1    
 chitinase (ChiA;BTZK0359;BCE33L0359) 3.2.1.14 Bacillus cereus E33L AAU19880.1
AJI29955.1
Q63GJ3  
 BTZK3135   Bacillus cereus E33L AAU17127.1
AJI29442.1
Q638E5  
 BTZK3314   Bacillus cereus E33L AAU16950.1
AJI31657.1
Q637L8  
 BTZK3483 (ChiA)   Bacillus cereus E33L AAU16783.1
AJI30431.1
Q636V2  
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