Recombinant Human Interferon alfa 2b

Detailed Product Description

Description:
Recombinant Human Interferon-alpha 2b produced in E. coli is a single, non-glycosylated, polypeptide chain containing 165 amino acids and having a molecular mass of 19269 Dalton. The Interferon-alpha 2b gene was obtained from human leukocytes.
Quality Control:
Biological activity: The specific activity as determined in a viral resistance assay using VSV- WISH cells was found to be greater than 1.0 x 108 IU/ mg.
Purity: Greater than 95% as determined by
(a) Analysis by SEC-HPLC.
(b) Analysis by reducing and non-reducing SDS-PAGE Silver Stained gel.
Molecular weight: 19.2KD+/-10% determined by reduced SDS-PAGE.
Isoelectric Point: The main zone between 5.5~6.8 analysis by IEF.
UV Scan: The maximal absorption wave is 278+/-3nm.