Human IL21 (Q9HBE4, 133 amino acids) partial recombinant protein expressed in Escherichia coli.
Theoretical MW (kDa):
15.5
Form:
Lyophilized
Preparation Method:
Escherichia coli expression system
Purity:
≥ 90% by SDS-PAGE and HPLC
Endotoxin Level:
< 0.1 ng/ug
Activity:
The recombinant human IL-21 is fully biologically active when compared to standard. The ED50 was determined by the dose-dependent stimulation of human peripheral blood mononuclear cells is < 5 ng/mL.
Storage Buffer:
No additive
Storage Instruction:
Store at -20°C on dry atmosphere. After reconstitution with deionized water, store at -20°C. Aliquot to avoid repeated freezing and thawing.