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19.4 kDa

cDNA obtained from human leukocyte mRNA expressed in E.coli

> 95% by SDS-PAGE stained by Coomassie Blue
Endotoxin level < 1 EU/mg

Measured using a cytopathic inhibition assay on Bovine Kidney Cells (MDBK) with Vesicular Stomatis Virus (VSV); human lung carcinoma cell line A549 with encephalomyocarditis virus (EMCV)

Phosphate buffered saline (PBS) containing 0.1% bovine serum albumin (BSA)

< 1 EU/μg

Purified from E. coli by a combination of ion exchange, hydrophobic interaction and size exclusion chromatography

For retention of full activity store at -70 oC or below and avoid repeated freeze-thaw cycles