Recombinant Human IL21 protein

• Cat.No.: IL21-866H
• Product Overview: Recombinant Human IL21 protein(Q9HBE4-1)(Gln32-Ser162) was expressed in E.coli.

Specification

• Species: Human
• Source: E.coli
• Tag: Non
• Protein Length: Gln32-Ser162
• Tag: Non
• Form: Lyophilized from 0.22μm filtered solution in 20mM NaAc, 150mM NaCl (pH 5.5). Normally 8% trehalose is added as protectant before lyophilization.
• Bio-activity: Immobilized Human IL-21, No Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human IL-21R, hFc Tag with the EC50 of 42.3ng/ml determined by ELISA.
• Molecular Mass: The protein has a predicted MW of 15.4 kDa same as Tris-Bis PAGE result.
• Endotoxin: Less than 1EU per μg by the LAL method.
• Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
• Storage: Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
• Reconstitution: Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in 20mM NaAc, 150mM NaCl (pH 5.5).

Gene Information

• 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