3.4.19.3 additional information - 9.0-9.5 681896 3.4.19.3 additional information - optimal activity between 8.8-10.5, activity decreases rapidly below pH 8.0 681817 3.4.19.3 6.5 - - 95298 3.4.19.3 6.5 8 - 95300 3.4.19.3 6.5 8 hydrolysis of thyrotrophic hormone releasing hormone 95289 3.4.19.3 6.5 8.5 - 95300 3.4.19.3 6.8 7.6 - 95299 3.4.19.3 7 - - 95294, 95300 3.4.19.3 7 8 - 95290 3.4.19.3 7 8 hydrolysis of pyroglutamyl-2-naphthylamide or pyroglutamyl-Ala 95283