Activities in Family	Modules of approx. 60 residues found in bacterial enzymes. Chitin-binding described in several cases. Distantly related to the CBM12 family.
Note	Previously known as cellulose-binding domain family V (CBD V).
Statistics	GenBank accession (6223); Uniprot accession (540); PDB accession (40); 3D entries (6); cryst (0)

Archaea
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
chitinase (PF1234+PF1233;ChiA+ChiB) (Chi18B+Chi18A)	3.2.1.14 3.2.1.14	Pyrococcus furiosus DSM 3638	AAL81358.1 NP_578963.1	Q8U1H4	2RTS[A] NMR
Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
endo-β-1,4-glucanase Z (CelZ;EgZ;Dda3937_02793) (Cel5A=Cel5Z)	3.2.1.4	Dickeya dadantii 3937	ADM99099.1 CAA68604.1	P07103	1AIW[A] NMR
chitinase 60 (Chi60;MmChi60)	3.2.1.14	Moritella marina	CAM88673.1	B1VBB0	4HMC[A] 2.10 4HMD[A] 2.26 4HME[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.07 4MB3[A] 1.55 4MB4[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.48 4MB5[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 1.64
chitinase B (ChiB;SmChiB)	3.2.1.14	Serratia marcescens BJL200	CAA85292.1	Q54276	1E15[A,B] 1.9 1E6N[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.25 1E6P[A,B] 1.70 1E6R[A,B] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 2.5 1E6Z[A,B] β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.99 1GOI[A,B] 1.45 1GPF[A,B] 1.85 1O6I[A,B] 1.70 1OGB[A,B] 1.85 1OGG[A,B] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.97 1UR8[A,B] β-D-GlcpNAc-(1-4)-α-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.9 1UR9[A,B] β-D-GlcpNAc-(1-4)-β-D-Glcp1N2NAc-(1-1)-<non_carb> 1.8 1W1P[A,B] 2.1 1W1T[A,B] 1.9 1W1V[A,B] 1.85 1W1Y[A,B] 1.85
chitinase B (ChiB)	3.2.1.14	Serratia marcescens QMB1466 / BJL200	CAA33278.1 AAL57855.1 ABE17214.1 ABE17690.1 ABH92214.1 BAA31568.1	P11797 Q547S1	1H0G[A,B] 2.00 1H0I[A,B] 2.00 3WD0[A] 1.70 3WD1[A] 2.30 3WD2[A] 2.20 3WD3[A] 2.20 3WD4[A] 2.00 4Z2G[A] 2.60 4Z2H[A] 2.35 4Z2I[A] 2.00 4Z2J[A] 2.60 4Z2K[A] 2.30 4Z2L[A] 2.30
chitinase C (ChiC)	3.2.1.14	Streptomyces griseus HUT 6037	BAA23739.1 ABE17217.1 ABE17693.1 ABH92217.1	O50152	1WVU[B] 2.45 1WVV[B] 2.00 2D49[A] NMR
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