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Figure 5 | Biotechnology for Biofuels

Figure 5

From: Close relationship of a novel Flavobacteriaceaeα-amylase with archaeal α-amylases and good potentials for industrial applications

Figure 5

Effects of pH and temperature on the activity of FSA and mutated protein FSAΔSK. (A) pH profile; (B) stability of enzymes at various pH values; (C) temperature profiles; and (D) time-course curves of enzyme activities at 50°C. ▲ represents the relative activities of FSA at investigated conditions; and ∆ represents the relative activities of FSAΔSK at investigated conditions. In (D), ▲ represents the relative activity of FSA at 50°C with no Ca2+ addition; ∆ represents the relative activity of FSAΔSK at 50°C with no Ca2+ addition; □ represents the relative activity of FSA at 50°C in the presence of 1 mM Ca2+; and ■ represents the relative activity of FSAΔSK at 50°C in the presence of 1 mM Ca2+.

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