Mechanism	Inverting e
3D Structure Status	6-stranded β-barrel
Catalytic Nucleophile/Base	probably Asp
Catalytic Proton Donor	probably Glu
Note	mechanism and catalytic residues in Cheng et al. (2006) J. Biol. Chem. 281:3137-3144 (PMID: 16330537)
External resources	CAZypedia;
Statistics	GenBank accession (922); Uniprot accession (15); PDB accession (5); 3D entries (1); cryst (0)

unclassified
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
viral AMG chitosanase / endochitosanase (V-Csn)	3.2.1.132	unclassified sequences			7TVM[A,B] 1.35 7TVN[A] 1.20 7TVO[A] 1.15 7TVP[A] β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN 1.30 7TVL[A] 0.89
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