2.1.1.14 4.6 9 at pH 4.6: 0.0096 micromol/min/mg, at pH 6.5: 0.155 micromol/min/mg, at pH 9.0: 0.119 micromol/min/mg 720259 2.1.1.14 6 8.5 - 441323 2.1.1.14 6 8.7 pH 6.0: about 70% of maximum activity, pH 8.7: about 90% of maximum activity 441172