1.3.1.31 4 30 enzyme stable over 24 h 724053 1.3.1.31 30 - half-life of inactivation: 64.8 h 724100 1.3.1.31 30 45 KYE1 has a half-life of 1146 min at 30°C, 210 min at 37°C, and less than 5 min at 45°C 684248 1.3.1.31 30 45 XenA has a half-life of 600 min at 30°C, 99 min at 37°C, and less than 5 min at 45°C 684248 1.3.1.31 30 45 Yers-ER has a half-life of more than 2160 min at 30°C, 1488 min at 37°C, and 117 min at 45°C 684248 1.3.1.31 39 - temperature of aggregation 762904 1.3.1.31 40 - 100 min, pH 6.5, about 20% loss of activity 762858 1.3.1.31 45 - 100 min, pH 6.5, about 25% loss of activity 762858 1.3.1.31 49.9 - temperature of aggregation 762904 1.3.1.31 50 - 100 min, pH 6.5, about 30% loss of activity 762858