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15,635 Da

cDNA obtained from rat leukocytes expressed in E.coli

> 95% by SDS-PAGE stained by Coomassie Blue

Determined in a cytopathic effect inhibition assay

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