R&D Systems™ Recombinant Human IFN-alpha 21/IFNA21 Protein

Catalog No.	Quantity
11159IF050	50 μg
11159IF010	10 μg

Catalog No. 11159IF050 Supplier R&D Systems™ Supplier No. 11159IF050

Description

Measured in anti-viral assays using HeLa human cervical epithelial carcinoma cells infected with encephalomyocarditis (EMC) virus. Meager, A. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 129. The ED50 for this effect is 1.00-30.0 pg/mL.

Specifications

• Accession Number: P01568.2
• For Use With (Application): Bioactivity
• Formulation: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
• Gene ID (Entrez): 3452
• Molecular Weight (g/mol): M.W.-observed: 18-22 kDa, under reducing conditions., M.W.-theroretical: 19 kDa
• Quantity: 50 μg
• Source: Chinese Hamster Ovary cell line, CHO-derived human IFN-alpha 21/IFNA21 protein Cys24-Glu189
• Storage Requirements: Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution.
• Endotoxin Concentration: <0.10 EU / 1 μg of the protein by the LAL method.
• Gene Alias: IFNA21, IFNalpha F, IFN-alpha F, IFN-alpha-21, IFN-alphaI, interferon alpha-21, Interferon alpha-F, interferon, alpha 21, LeIF F, leukocyte interferon protein, MGC126687, MGC126689
• Conjugate: Unconjugated
• Reconstitution: Reconstitute at 100 μg/mL in PBS.
• Purity or Quality Grade: >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie™ Blue Staining.
• Protein: IFN-alpha F/IFNA21