Recombinant Human Interleukin-21(rHu IL-21)

SKU: orb1631636

Description

Images & Validation

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Key Properties

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Source	Human
Expression System	Escherichia coli.
Biological Activity	Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human N1186 T cells is less than 20 ng/ml, corresponding to a specific activity of > 5.0 × 104 IU/mg.
Molecular Weight	Approximately 15.4 kDa, a single non-glycosylated polypeptide chain containing 133 amino acids.
Purity	> 97 % by SDS-PAGE and HPLC analyses.

Storage & Handling

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Storage	This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
Form/Appearance	Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.4.
Disclaimer	For research use only

Alternative Names

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Za11

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UniProt

Q9HBE4

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