GMP Recombinant Human IL21 Protein

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GMP Recombinant Human IL21 Protein

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Cat.No. : IL21-371HG
Product Overview : Recombinant mature form of human IL21 isoform 1 (Q9HBE4-1) (Gln23-Ser155) was expressed and purified with an initial Met in an animal component free process under cGMP guidelines.
Source : E. coli
Species : Human
Predicted N Terminal : Met
Form : Lyophilized from sterile PBS, pH 7.4, 5 % trehalose, 5 % mannitol and 0.01% Tween80.
Bio-activity : Measured by its ability to induced Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The ED50 for this effect is 0.4-2 ng/mL.
Molecular Mass : The GMP recombinant human IL-21 consists of 134 amino acids and has a calculated molecular mass of 15.6 kDa.
Endotoxin : < 0.01 EU per μg of the protein as determined by the LAL method.
Purity : > 95 % as determined by SDS-PAGE.
Storage : Samples are stable for up to twelve months from date of receipt at -20°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.25 mg/ml. Centrifuge the vial at 4°C before opening to recover the entire contents.
Shipping : In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Gene Name : IL21 interleukin 21 [ Homo sapiens ]
Official Symbol : IL21
Synonyms : IL21; interleukin 21; interleukin-21; IL 21; Za11; interleukin-21 isoform; IL-21;
Gene ID : 59067
mRNA Refseq : NM_001207006
Protein Refseq : NP_001193935
MIM : 605384
UniProt ID : Q9HBE4

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