1.1.1.31 34.5 - at pH 11.0, the melting temperature is 34.5°C 760528 1.1.1.31 45 - enzyme activity is not decreased during preincubation at 45°C within 30 min, but preincubation at 55°C in 3 min can significantly denaturate and deactivate the enzyme 695710 1.1.1.31 45 - stable at 45°C for 30 min, about 40% activity after 3 min at 55°C 695710