3.4.24.17 37 - 48 h, stable, prostromelysin 31017 3.4.24.17 37 - stable at pH 6-9 31012 3.4.24.17 80 - 15 min, 35% loss of activity 31017 3.4.24.17 80 - 15 min: 35% loss activity of enzyme form HMW, 5% loss of sctivity of enzyme form LMW 31002 3.4.24.17 100 - 15 min, 65% loss of activity of enzyme form HMW, 25% loss of activity of enzyme form LMW 31002