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Formulation | 50 mM NaOAc, pH 5.5 containing 0.1% BSA |
Molecular Weight | ~ 23 kDa |
Source | cDNA obtained from human fibroblast interferon beta 1a mRNA expressed in CHO cells |
Purity |
> 95% by SDS-PAGE stained by Coomassie Blue Endotoxin level < 1 EU/μg |
Bioactivity | Measured using a cytopathic inhibition ***** on human lung carcinoma cell line A549 with encephalomyocarditis virus (EMCV). EC50 for IFN beta 1a in this ***** is ~ 1 U/ml |
Storage | For retention of full activity store at -70°C or below and avoid repeated freeze/thaw cycles |
Synonyms | Human IFNB, Human Beta Interferon, Human IFN Beta 1a, Human Interferon beta 1a, Human Type I Interferon Beta, Human IFN B |