1.1.1.360 additional information - Zn2+ improves thermal stability. EDTA completely abolishes the stabilizing effect of Zn2+ 1.1.1.360 40 - the enzyme retains more than 90% of its activity after incubation for 10 min at temperatures of up to 40°C 1.1.1.360 60 - 10 min, retains more than 90% of its activity 1.1.1.360 60 - 10 min, the enzyme retains more than 90% of its activity 1.1.1.360 65 - pH 6.5, without the addition of Zn2+, t1/2: 3 h 1.1.1.360 70 - pH 6.5, without the addition of Zn2+, t1/2: 5 min. At 1 mM Zn2+ the enzyme is stable for 3 h