1.13.11.27 -20 - enzyme activity is stable for a few weeks. 1.13.11.27 37 - pH 5.5-8, 15 min, stable 1.13.11.27 37 - pH 7.5, 0.64 M Tris-HCl, stable for 7.5 min 1.13.11.27 40 - pH 4.0, half-life: 1.5 h 1.13.11.27 52.6 - melting temperature, wild-type 1.13.11.27 54.3 - melting temperature, wild-type in presence of Fe2+ 1.13.11.27 54.4 - melting temperature, mutant lacking 17 N-terminal residues 1.13.11.27 56.5 - melting temperature, mutant lacking 12 N-terminal residues 1.13.11.27 56.7 - melting temperature, mutant E12A 1.13.11.27 57.1 - melting temperature, wild-type 1.13.11.27 58 - melting temperature, mutant P11A 1.13.11.27 59.8 - melting temperature, mutant K10A 1.13.11.27 77 - strong conformational changes are observed at 77°C, indicating melting of the protein