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R&D Systems™ Human IFN-alpha 4b (alpha 4) Recombinant Protein
Manufacturer: R&D Systems™ 111801
Description
Interferon was titrated with the use of the cytopathic effect inhibition assay as listed: Bovine (MDBK/VSV) – performed as described [Rubinstein, et al. (1981) J. Virol. 37(2):755]. The EC 50 for interferon in this assay is ~5 U/ml. Lot Activity was derived from multiple determinations in the above assay. Human (A549/EMCV) – performed as described [Budd, et al. (1985) Canc. Chem. Pharm. 12:39]. The EC 50 for interferon in this assay is ~1 U/ml.Specifications
| X02955 | |
| Phosphate buffered saline (PBS) containing 0.1% bovine serum albumin (BSA) | |
| E. coli-derived |
| Bioactivity | |
| Predicted MW: 19.4kDa | |
| Store the unopened product at -20 to -70° C. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Do not use past expiration date. |
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