Table 3.

Overview of the three groups of fungal cellulolytic enzymes and their main features.

	Optimum Substrate	Molecular mass (kDa)	GH family: corresponding structural fold	Optimum temperature (°C)	pH optimum	Glyco-sylation	References
Endo-1,4- β-glucanases (EG)	Cellulose (amorphous regions)	Monomeric (22-45)	5: (β/α)8	50-70	Mostly 4-5	None or very low	33,35,44
			6: Distorted (β/α)
			7, 12: β-jelly roll
			9, 48: (α/α)6
			45: β barrel
			61: -
			74: 7-fold β-propeller
Cellobiohydrolases (CBH)	Cellulose (crystalline regions)	Monomeric (50-65)	6: Distorted (β/α)	37-60	Mostly 4-5	None or very low	33,35,44
			7: β-jelly roll
			9, 48: (α/α)6
β-glucosidases (BGL)	Cellobiose, cellodextrins	Monomeric, dimeric, trimeric (35-450)	1: (β/α)8	45-75	Vary1	Usually very high	33,35,44,61-63
			3: -

¹pH optima of BGLs vary based on the enzyme localization.