TABLE 4.

Substrate specificity of bifunctional CtCel7.

		Specific Activity (IU/mg)
Substrates	Main linkage types	CtCel7	TlCBHI	TlXyn
PASC	β-1,4-glucan	2.54 ± 0.15	1.23 ± 0.16	1.32 ± 0.17
filter paper	β-1,4-glucan	2.16 ± 0.39	1.11 ± 0.24	1.74 ± 0.31
glucan	β-1,4-glucan	1.94 ± 0.16	0.95 ± 0.08	1.58 ± 0.05
CMC-Na	β-1,4-glucan	0.48 ± 0.07	0.62 ± 0.13	0.44 ± 0.03
xylan	β-1,4-xylan	1.49 ± 0.11	0.21 ± 0.04	2.45 ± 0.24
lichenin	β-1,3/1,4-glucan	1.30 ± 0.06	0.79 ± 0.02	1.87 ± 0.02
mannan	β-1,2/1,3-glucosamine	ND	ND	ND
chitin	β-1,4-glucopyranose	ND	ND	ND
arabinogalactan	β-1,3/6-galactose	ND	ND	ND
sucrose	α-1,2-glucan	ND	ND	ND
amylose	α-1,4-glucan	ND	ND	ND
amylopectin	α-1,6-glucan	ND	ND	ND

ND indicates that no activity was detected. Values are the means ± SD of three replicates.