EC Number |
Storage Stability |
---|
4.1.2.43 | -15°C, in the presence of 2.5 mM MgCl2, 6 months, remains stable unless repeatedly frozen and thawed |
4.1.2.43 | -20°C, purified enzyme, at least 1 year, no loss of activity |
4.1.2.43 | -80°C, purified enzyme, in the presence of 5 mM MgSO4, 5 mM D-ribose 5-phosphate, and 1.75 units/ml phosphoriboisomerase, at least 5 months, no loss of activity |
4.1.2.43 | 0°C to -4°C, purified enzyme in the presence of 3.2 M ammonium sulfate, at least 1 year, no loss of activity |