Table 1.

Examples of cellulases with endo- and exo- mode of action

CAZy family	Accession Number	Fold	Mode of action	Reference
GH5	Q47916	(β/α) 8	Endo	[19]
GH5	CAB76938.1	(β/α) 8	Exo	[51]
GH6	Q53488	atypical β/α barrel	Endo	[52]
GH6	AAA62211.1	atypical β/α barrel	Exo	[53]
GH7	P56680	β-jelly roll	Endo	[54]
GH7	A7LN91	β-jelly roll	Exo	[27]
GH8*	AAA73867.1	(α/α) 6	Endo	[55]
GH9	Q02934	(α/α) 6	Endo	[56]
GH9	Q6RSN8	(α/α) 6	Exo	[57]
GH12*	O33897	β-jelly roll	Endo	[25]
GH23*	2XQO_A	α8 superhelical	Endo	[33]
GH44*	Q934F9	(β/α) 8	Endo	[58]
GH45*	Q9P868	β6-barrel	Endo	[59]
GH48	P37698	(α/α) 6	Endo	[60]
GH48	Q8KKF7	(α/α) 6	Exo	[61]
GH51*	P77865	(β/α) 8	Endo	[26]
GH61*	O14405	β-sandwich with an Ig-like topology. β9α5	Endo	[62]
GH74*	Q9WYE1	7-fold β-propeller	Endo	[63]

^*does not have confirmed cellualses with exo- mode of action in CAZy [30]