Figure 3From: Increasing stability of water-soluble PQQ glucose dehydrogenase by increasing hydrophobic interaction at dimeric interfaceThermal stability of wild-type and mutant PQQGDH-Bs. Residual activity was measured at 25°C after 10-min incubations at different temperatures of the following protein samples (0.075 μg/mL): Wild-type ◆, Asn340Phe/Tyr418Phe □, Asn340Phe/Tyr418Ile △, and Thr416Val/Thr417Val ○.Back to article page