Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4.
纯度:
Greater than 95% as determined by reducing SDS-PAGE.
内毒素:
Less than 0.001 ng/µg (0.01 EU/µg) as determined by LAL test.
生物活性:
Measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells The specific activity of Recombinant Human IL-2 is ≥1×107 IU/mg.
保存条件:
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.Reconstituted protein solution can be stored at 4-7°C for 2-7 days.Aliquots of reconstituted samples are stable at < -20°C for 3 months.