Glycoside Hydrolase Family 18

Activities in Familychitinase (EC; lysozyme (EC; endo-β-N-acetylglucosaminidase (EC; 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
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 (16888); Uniprot accession (3282); PDB accession (326); 3D entries (86); cryst (3)
All (15333) Archaea (62) Bacteria (11365) Eukaryota (3356) Viruses (313) unclassified (237) Structure (86 - 3 cryst) Characterized (481)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 114 |
Protein Name EC#OrganismGenBank UniprotPDB/3D
 SD37_08310   Amycolatopsis orientalis B-37 ANN15661.1    
 AORI_2872   Amycolatopsis orientalis HCCB10007 AGM05458.1    
 AORI_1024   Amycolatopsis orientalis HCCB10007 AGM03613.1    
 AORI_1637   Amycolatopsis orientalis HCCB10007 AGM04225.1    
 AORI_2429   Amycolatopsis orientalis HCCB10007 AGM05017.1    
 AORI_2695   Amycolatopsis orientalis HCCB10007 AGM05282.1    
 AORI_3300   Amycolatopsis orientalis HCCB10007 AGM05885.1    
 AORI_3663   Amycolatopsis orientalis HCCB10007 AGM06248.1    
 AORI_6419   Amycolatopsis orientalis HCCB10007 AGM09002.1    
 AORI_6420   Amycolatopsis orientalis HCCB10007 AGM09003.1    
 AORI_6421   Amycolatopsis orientalis HCCB10007 AGM09004.1    
 chitinase   Amycolatopsis orientalis M9-2 AJT58396.1    
 chitinase   Amycolatopsis orientalis Y9-2 AJT58395.1    
 CU254_06190   Amycolatopsis sp. AA4 ATY16198.1    
 CU254_34150   Amycolatopsis sp. AA4 ATY14888.1    
 CU254_22370   Amycolatopsis sp. AA4 ATY12887.1    
 CU254_12055   Amycolatopsis sp. AA4 ATY11118.1    
 CU254_10150   Amycolatopsis sp. AA4 ATY10792.1    
 CU254_19630   Amycolatopsis sp. AA4 ATY12416.1    
 CU254_03645   Amycolatopsis sp. AA4 ATY16138.1    
 CU254_06525   Amycolatopsis sp. AA4 ATY10151.1    
 CU254_28620   Amycolatopsis sp. AA4 ATY13950.1    
 CU254_13025   Amycolatopsis sp. AA4 ATY16331.1    
 BKN51_10780   Amycolatopsis sp. BJA-103 AUI58643.1    
 BKN51_25535   Amycolatopsis sp. BJA-103 AUI61209.1    
 BKN51_04750   Amycolatopsis sp. BJA-103 AUI57599.1    
 BKN51_25525   Amycolatopsis sp. BJA-103 AUI61207.1    
 BKN51_07015   Amycolatopsis sp. BJA-103 AUI57998.1    
 BKN51_25530   Amycolatopsis sp. BJA-103 AUI61208.1    
 BKN51_06105   Amycolatopsis sp. BJA-103 AUI57843.1    
 BKN51_39225   Amycolatopsis sp. BJA-103 AUI63600.1    
 BKN51_00435   Amycolatopsis sp. BJA-103 AUI56829.1    
 CPRO_04140 (YaaH)   Anaerotignum propionicum DSM 1682 X2 AMJ40023.1    
 CB4_02120 (Yaah_2) (fragment)   Aneurinibacillus soli CB4 BAU27946.1    
 CB4_01245 (PgaC)   Aneurinibacillus soli CB4 BAU27076.1    
 CB4_02129 (Yaah_3) (fragment)   Aneurinibacillus soli CB4 BAU27955.1    
 CB4_02202 (YdhD)   Aneurinibacillus soli CB4 BAU28028.1    
 ACH33_10850 (fragment)   Aneurinibacillus sp. XH2 AMA73302.1    
 ACH33_10785 (fragment)   Aneurinibacillus sp. XH2 AMA73291.1    
 GFC30_181   Anoxybacillus amylolyticus DSM 15939 ANB60739.1    
 GFC30_1655   Anoxybacillus amylolyticus DSM 15939 ANB61241.1    
 GFC28_2668   Anoxybacillus sp. B2M1 ANB55828.1    
 GFC28_3755 (SafA)   Anoxybacillus sp. B2M1 ANB57503.1    
 GFC29_1678 (SafA)   Anoxybacillus sp. B7M1 ANB64264.1    
 GFC29_2767   Anoxybacillus sp. B7M1 ANB63443.1    
 SAMN00777080_2663   Aquiflexum balticum DSM 16537 SMD44048.1    
 SAMN00777080_2641   Aquiflexum balticum DSM 16537 SMD44026.1    
 SAMN00777080_4319   Aquiflexum balticum DSM 16537 SMD45659.1    
 A9P82_06440   Arachidicoccus sp. BS20 ANI88963.1    
 AA314_02457   Archangium gephyra DSM 2261 AKJ00831.1    
 DJ013_08250   Arcticibacterium luteifluviistationis SM1504 AWV98164.1    
 ADJ73_09510   Arsenicicoccus sp. oral taxon 190 F0371 AKT51493.1    
 CVO76_00975   Arthrobacter agilis UMCV2 AUZ86376.1    
 AOC05_02950   Arthrobacter alpinus R3.8 ALE91540.1    
 CGQ24_15780   Arthrobacter sp. 7749 ASN40320.1    
 CGQ24_04495   Arthrobacter sp. 7749 ASN38343.1    
 MB46_02510   Arthrobacter sp. A3 ALV44555.1    
 MB46_17090   Arthrobacter sp. A3 ALV46940.1    
 AL755_20940   Arthrobacter sp. ERGS1:01 ALE07374.1    
 Arth_1229   Arthrobacter sp. FB24 ABK02623.1 A0JUA3  
 AHiyo8_47230 (fragment)   Arthrobacter sp. Hiyo8 BAS16420.1    
 AHiyo8_47240 (fragment)   Arthrobacter sp. Hiyo8 BAS16421.1    
 AHiyo8_16780   Arthrobacter sp. Hiyo8 BAS13375.1    
 UM93_11000   Arthrobacter sp. IHBB 11108 AJT41910.1    
 ARUE_c33560   Arthrobacter sp. Rue61a AFR30237.1    
 chitinase (ChiC) Arthrobacter sp. TAD20 CAD43215.1 Q6A4C3  
 chitinase (ChitiA) Arthrobacter sp. TAD20 CAB62382.1 Q9RMB8  
 chitinase (ChitiB) Arthrobacter sp. TAD20 CAB62499.1 Q9REI6 1KFW[A]
 ARZXY2_512   Arthrobacter sp. ZXY-2 AOY70078.1    
 Astex_1318   Asticcacaulis excentricus CB 48 ADU12991.1 C5SLQ2  
 AUMI_14430   Aurantimicrobium minutum KNC BAU98985.1    
 AURMO_00714   Aurantimicrobium sp. MWH-Mo1 AWR21323.1    
 type III fibronectin (fragment)   Aureimonas altamirensis DSM 21988 BAT25730.1    
 type III fibronectin (fragment)   Aureimonas altamirensis DSM 21988 BAT25730.1    
 type III fibronectin (fragment)   Aureimonas altamirensis DSM 21988 BAT25730.1    
 ORF   Aureimonas frigidaquae JCM 14755 BAT27953.1    
 C5O00_04350   Aureitalea sp. RR4-38 AVI50436.1    
 AZC_4417   Azorhizobium caulinodans ORS 571 BAF90415.1 A8HWC9  
 AZC_2901   Azorhizobium caulinodans ORS 571 BAF88899.1 A8IDA6  
 ABAZ39_28625   Azospirillum brasilense Az39 AIB15825.1    
 AZOBR_p310284   Azospirillum brasilense Sp245 CCD02542.1
 TSH58p_32220   Azospirillum sp. TSH58 AWJ88261.1    
 CSE15_00120   Bacillus altitudinis P-10 ATP92493.1    
 CFN77_00120   Bacillus altitudinis SGAir0031 ATH70706.1    
 BAALB65_07160   Bacillus amyloliquefaciens ALB65 AWM43823.1    
 BAALB65_00115   Bacillus amyloliquefaciens ALB65 AWM42569.1    
 DDT09_00115   Bacillus amyloliquefaciens ALB69 AWM46392.1    
 DDT09_07175   Bacillus amyloliquefaciens ALB69 AWM47640.1    
 DDT10_00115   Bacillus amyloliquefaciens ALB79 AWM50213.1    
 DDT10_06730   Bacillus amyloliquefaciens ALB79 AWM51382.1    
 DDT10_06985   Bacillus amyloliquefaciens ALB79 AWM51429.1    
 chitinase   Bacillus amyloliquefaciens AVWX-1 ABO15008.1 A8QLM7  
 A1R12_06555   Bacillus amyloliquefaciens B15 AMR50023.1    
 A1R12_00105   Bacillus amyloliquefaciens B15 AMR48872.1    
 chitinase   Bacillus amyloliquefaciens BCM-1 AIU96332.1    
 U471_00180   Bacillus amyloliquefaciens CC178 AGZ54734.1    
 U471_13290   Bacillus amyloliquefaciens CC178 AGZ56035.1    
 BAMF_1413 (YdhD)   Bacillus amyloliquefaciens DSM 7 CBI42539.1 E1USF1  
 BAMF_0017 (YaaH)   Bacillus amyloliquefaciens DSM 7 CBI41143.1 E1UJ85  
 KSO_019325   Bacillus amyloliquefaciens IT-45 AGF29344.1    

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