Recombinant human IL-21 protein (HEK293)

• Catalog Number: orb1516417
• Category: Proteins
• Description: Recombinant human IL-21 protein (HEK293)
• Target: Interleukin-21
• Tag: Tag free
• Form/Appearance: Lyophilized
• Concentration: ＞0.5 mg/ml
• Buffer/Preservatives: Lyophilized from 0.22um filtered solution in PBS (pH7.4) with 5mM DTT. Normally 5% trehalose is added as protectant before Lyophilization.
• Purity: > 95% as determined by Tris-Bis PAGE; > 95% as determined by SEC-HPLC
• Protein Sequence: 25-155/162
• MW: Due to glycosylation, the protein migrates to 38-55 kDa based on Tris-Bis PAGE result.
• Application notes: Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
• Expression System: E.coli
• Endotoxins: < 1.0 EU/μg as determined by LAL
• Biological Activity: Not tested
• Storage: Stored at -70°C or -20°C. Avoid repeated freeze/thaw cycles.
• Alternative names: Interleukin 21; Interleukin21; IL 21; IL-21; Za11;
• Note: For research use only

Human IL-21 Protein on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.