Activities in Family	chitosanase (EC 3.2.1.132); cellulase (EC 3.2.1.4); licheninase (EC 3.2.1.73); endo-1,4-β-xylanase (EC 3.2.1.8); reducing-end-xylose releasing exo-oligoxylanase (EC 3.2.1.156); endo-β-1,3(4)-glucanase / lichenase-laminarinase (EC 3.2.1.6)
Mechanism	Inverting
Clan	GH-M
3D Structure Status	( α / α ) 6 barrel
Catalytic Nucleophile/Base	Asp (inferred)
Catalytic Proton Donor	Glu (experimental)
Note	formerly known as cellulase family D
External resources	CAZypedia; PRINTS; PROSITE;
Commercial Enzyme Provider(s)	NZYTech; PROZOMIX;
Statistics	GenBank accession (9145); Uniprot accession (83); PDB accession (49); 3D entries (18); cryst (1)

Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
endo-β-1,4-glucanase A (CelA) (Cel8A)	3.2.1.4	Acetivibrio thermocellus NCIB 10682 / JW20	AAA83521.1	A3DC29 P04955	1CEM[A] 1.65 1IS9[A] 1.03 1KWF[A] β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp 0.94
endo-β-1,4-glucanase (VFA0882)		Aliivibrio fischeri ES114	AAW87952.1		5CD2[A] 1.55
chitosanase (ChoK)	3.2.1.132	Bacillus cereus BAG1O-3 K17-2		Q9ALZ1 S3JG56	1V5C[A] 2.00 1V5D[A,B] 1.50 7CJU[A,B] 1.74 7XGQ[A,B] 1.50
endo-β-1,4-glucanase (BcsZ)	3.2.1.4	Enterobacter sp. CJF-002	BAM44856.1	K0IUV6	7F81[A,B,C,D] 1.93 7F82[A,B,C,D] β-D-Glcp-(1-4)-β-D-Glcp β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-α-D-Glcp 1.30
endo-β-1,4-glucanase (YhjM;BcsC;b3531) (periplasmic)	3.2.1.4	Escherichia coli str. K-12 substr. MG1655	AAC76556.1 AAB18508.1 AIZ89469.1 ALI38788.1 AMC96411.1 AUG18236.1 AVI53692.1 AYG17530.1 NP_417988.1	P37651	3QXF[A,B,C,D] 1.85 3QXQ[A,B,C,D] β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp-(1-4)-β-D-Glcp 2.20
reducing-end-xylose releasing exo-oligoxylanase (Rex;BH2105)	3.2.1.156	Halalkalibacterium halodurans C-125	BAB05824.1 NP_242971.1	Q9KB30	1WU4[A] 1.35 1WU5[A] β-D-Xylp 2.20 1WU6[A] β-D-Xylp-(1-4)-β-D-Xylp 1.45 2DRO[A] 1.70 2DRQ[A] 2.10 2DRR[A] 1.60 2DRS[A] 2.10 3A3V[A] 1.39
endo-β-1,4-glucanase (Cel10;Kvar_0212)	3.2.1.4	Klebsiella variicola At-22	ADC56143.1	A0A0J4VP90 D3RD09	5GY3[A] 1.77
endo-β-1,4-glucanase (CMCax;CMCase;Orf1)	3.2.1.4	Komagataeibacter sucrofermentans BPR2001	BAA31461.1 AAQ38000.1	O82857	6VC5[A] 1.50
endo-β-1,4-glucanase (CMCax;AEG)	3.2.1.4	Novacetimonas hansenii ATCC 23769	AAA16969.1	P37696	1WZZ[A] 1.65
reducing-end xylose-releasing exo-oligoxylanase (Rex8A)	3.2.1.156	Paenibacillus barcinonensis BP-23	ALP73600.1	A0A0S2UQQ5	6SHY[A,B] 1.81 6SRD[A,B] β-D-Xylp 1.93 6SUD[A,B] β-D-Xylp 1.74 6TO0[A,B] α-L-Araf-(1-2)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp 1.88 6TOW[A,B] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp 2.05 6TPP[A,B] 2.64 6TRH[A,B,C,D] β-D-Xylp-(1-4)[α-L-Araf-(1-3)]-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp 1.86
reducing end xylose-releasing exo-oligoxylanase		Paenibacillus barengoltzii	WP_016314299.1		5YXT[A,B,C,D] 1.88
β-1,3-1,4-glucanase / chitosanase (BGlc8H;Lic8H)	3.2.1.132 3.2.1.73	Paenibacillus sp. X4	AGV55649.1	A0A088BCU2	5X3A[A,B] 1.79 5XD0[A,B] 1.79
endo-β-1,4-xylanase (Xyl;XPH)	3.2.1.8	Pseudoalteromonas haloplanktis TAH3A	CAD20872.1 CAJ30796.1 CAJ33706.1	Q8RJN8	1H12[A] β-D-Xylp 1.2 1H13[A] 1.3 1H14[A] 1.5 1XW2[A] 1.76 1XWQ[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-α-D-Xylp 1.88 1XWT[A] 1.30 2A8Z[A] 3.20 2B4F[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp 1.95
endo-β-1,4-glucanase (BcsZ;PP2637)		Pseudomonas putida KT2440	AAN68245.1 NP_744781.1		4Q2B[A,B,C,D,E,F] 2.12
TE10_01090		Raoultella ornithinolytica S12	AJF70739.1		5CZL[A] 2.39
endo-β-1,4-glucanase C (CelC;Ccel_0730) (Cel8C)	3.2.1.4	Ruminiclostridium cellulolyticum H10	ACL75109.1 AAA73867.1	P37699	1G4L[nd] 1G4N[nd]
xylanase active on β-1,4-xylan and mixed-linkage β-1,3-β-1,4-xylan (TERTU_4506) (TtGH8)	3.2.1.32 3.2.1.8	Teredinibacter turnerae T7901	ACR14722.1 ACP87281.1 ACW01909.1	C5BJ89	6G00[A] 1.40 6G09[A] β-D-Xylp-(1-4)-β-D-Xylp 1.40 6G0B[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp 1.80 6G0N[A] β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp-(1-4)-β-D-Xylp 1.80
xylanase (Xyn8) (Xyn8)	3.2.1.8	uncultured bacterium	ABB71891.1	Q0H3C1	cryst
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