Mechanism	Inverting e
3D Structure Status	lysozyme fold
Catalytic Nucleophile/Base	probably Asp
Catalytic Proton Donor	probably Glu
External resources	CAZypedia;
Statistics	GenBank accession (1958); Uniprot accession (28); PDB accession (12); 3D entries (7); cryst (0)

Bacteria
Protein Name	EC#	Reference	Organism	GenBank	Uniprot	PDB/3D
chitosanase (Cho)	3.2.1.132	pubmed	Amycolatopsis sp. CsO-2	BAA94840.1	Q9LBG4
chitosanase	3.2.1.132	pubmed	Bacillus amyloliquefaciens UTK	BAB19276.1	Q9ET84
chitosanase (Csn)	3.2.1.132	pubmed	Bacillus sp. DAU101	ABC66094.1	A0EQW7
chitosanase (ChoK)	3.2.1.132	pubmed	Bacillus sp. KFB-CO4	AAF24188.1	Q9RC18
chitosanase	3.2.1.132	pubmed	Bacillus subtilis CH2	ACX55932.1	D0FHB6
chitosanase (Csn;BSU26890)	3.2.1.132	pubmed	Bacillus subtilis subsp. subtilis str. 168	CAB14630.1 AAB80882.1 ACX55933.1 AIY94013.1 AQR82709.1 AQR86924.1 CAA63455.1 CAX30779.1 NP_390566.1	A0A6M3ZEB4 B9W6G0 O07921	7C6C[A] 7C6D[A]
chitosanase (CsnV26)	3.2.1.132	pubmed	Bacillus subtilis V26	WP_003237265.1	A0A9W5PDY8
chitosanase A (CsnA)	3.2.1.132	pubmed	Burkholderia gladioli CHB101	WP_186096533.1 BAA82154.1	Q9XDS6
chitosanase (GsCsn46A; YC6258_05941)	3.2.1.132	pubmed	Gynuella sunshinyii YC6258	AJQ97965.1	A0A0C5VFC0	6LWU[A] 6X2Q[A]
chitosanase (TCH-2)	3.2.1.132	pubmed	Heyndrickxia coagulans CK108	AAL40906.1	Q8VU68
chitosanase	3.2.1.132	pubmed	Janthinobacterium sp. 4239	ADB89905.1	D3J1N7
chitosanase 1 (KSE_15150; Csn1)	3.2.1.132	pubmed	Kitasatospora setae KM-6054	BAJ27342.1	E4N811
chitosanase 2 (KSE_40860; Csn2)	3.2.1.132	pubmed	Kitasatospora setae KM-6054	BAJ29876.1	E4NEU0
chitosanase 3 (KSE_40930; Csn3)	3.2.1.132	pubmed	Kitasatospora setae KM-6054	BAJ29883.1	E4NEU7
chitosanase OU01	3.2.1.132	pubmed	Microbacterium sp. OU01	ABM91442.1	A7KBW5 E1AXU1 Q8KZM5	4OLT[A,B] 4QWP[A,B]
chitosanase (Csn;Cho1)	3.2.1.132	pubmed	Niallia circulans MH-K1	BAA01474.2	P33673	1QGI[A] 2D05[A] 5HWA[A]
chitosanase (Csn;CsnN106)	3.2.1.132	pubmed	Nocardioides sp. N106	AAA63405.1	P48846
chitosanase	3.2.1.132	pubmed	Paenibacillus ehimensis EAG1	BAA23489.1	O24825
chitosanase (Cto1)	3.2.1.132	pubmed	Pseudomonas sp. A-01	BAC06189.1	Q8KZM5
chitosanase (CsnA; Csn; ScCsn46A; SCO0677; SCF91.37) (Csn46A)	3.2.1.132	pubmed	Streptomyces coelicolor A3(2)	CAB61194.1 NP_624986.1	Q9RJ88
chitosanase (Cns;Chs;CsnN174)	3.2.1.132	pubmed	Streptomyces sp. N174	AAA19865.1	P33665	1CHK[A]
chitosanase (SACTE_5457)	3.2.1.132	pubmed	Streptomyces sp. SirexAA-E	AEN13266.1	G2NRC4	4ILY[A,B]
chitosanase (CsnA)	3.2.1.132	doi	uncultured bacterium	AJA30433.1	A0A0A7RCI7
Viruses
Protein Name	EC#	Reference	Organism	GenBank	Uniprot	PDB/3D
chitosanase (A292L;PBCV1_A292L)	3.2.1.132	pubmed	Paramecium bursaria Chlorella virus 1	AAC96660.1 NP_048646.1	Q84608
chitosanase 1 (VChtα-1)	3.2.1.132	pubmed	Paramecium bursaria Chlorella virus CVK2	BAA20342.1	O12288
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