1.14.14.10	-70°C, crude cell extract, up to 1 month, no loss of activity	
1.14.14.10	-70°C, purified component B of NTA monooxygenase in 20 mM HEPES buffer with 2 mM dithiothreitol, at pH 7.8, several months, without any significant loss of activity	
1.14.14.10	-80°C, partially purified, dialyzed enzyme, 3 months, no loss of activity	
1.14.14.10	4°C, crude cell extract, 48 hours, 50% loss of activity	
1.14.14.10	4°C, crude extract, 50 mM Tris-HCl, 200 h, 50% loss of activity	
1.14.14.10	4°C, purified component B of NTA monooxygenase in 20 mM HEPES buffer at pH 7.8, 7 days, 70% loss of activity	
1.14.14.10	4°C, purified component B of NTA monooxygenase in 20 mM HEPES buffer with 2 mM dithiothreitol and ammonium sulfate to 5% saturation, at pH 7.8, 7 days, 5% loss of activity	
1.14.14.10	4°C, purified component B of NTA monooxygenase in 20 mM HEPES buffer with 2 mM dithiothreitol, at pH 7.8, 7 days, 20% loss of activity