1.1.1.3 5 12 purified recombinant enzyme, 10 min, 50°C, completely stable at pH 5.5-10.5, loss of 25% activity at pH 11.0, loss of 70% activity at pH 5.0 and pH 11.5, inactivation at pH 12.0 760736 1.1.1.3 5 12 purified recombinant His-tagged enzyme, 10 min, 50°C, stable at 741408