1.7.7.1 23 - 1 h, pH 8.0, 75 mM Tris-HCl, stable 394400 1.7.7.1 40 - stable 394396 1.7.7.1 40 - thermostable up to 40°C 394388 1.7.7.1 45 - instable after 5 min 394407 1.7.7.1 60 - 10 min, more than 95% loss of activity 394388, 394396