Rat Il2 (P17108, 134 amino acids) partial recombinant protein expressed in Escherichia coli.
Theoretical MW (kDa):
15.3
Form:
Lyophilized
Preparation Method:
Escherichia coli expression system
Purity:
≥ 98% by SDS-PAGE and HPLC
Endotoxin Level:
< 0.1 ng/ug
Activity:
The ED50 as determined by the dose-dependent stimulation of the proliferation of murine CTLL-2 cells is 0.4 ng/ml, corresponding to a specific activity of ≥ 2.5 x 106 units/mg.
Storage Buffer:
Lyophilized from 10 mM Sodium Citrate, pH 4.0
Storage Instruction:
Store at -20°C on dry atmosphere. After reconstitution with sterilized 20 mM acetic acid, store at -20°C or lower. Aliquot to avoid repeated freezing and thawing.