Name : IFN-α 1b, Human
Product Concentration :
Background :
At least 23 different variants of IFN-alpha are known. The individual proteins have molecular masses between 19-26 kDa and consist of proteins with lengths of 156-166 and 172 amino acids. All IFN-alpha subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-alpha subtypes differ in their sequences at only one or two positions. Naturally occurring variants also include proteins truncated by 10 amino acids at the carboxy-terminal end.
Biological Activity :
Fully biologically active when compared to standard. The specific activity determined by an anti-viral assay is no less than 1.0 × 108 IU/mg.
expression system :
E. coli
Tag :
Expressed with an N-terminal Met. IFN-α 1b [Cys24-Glu189 (Ala137Val)]Accession # P01562
Protein Accession No. :
P01562
Synonyms :
Interferon-α1b; IFN-α1b
Molecular Weight :
Purity :
> 96% as analyzed by SDS-PAGE> 96% as analyzed by HPLC
Product Concentration :
Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4, 4% mannitol, 1% HSA.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. Avoid repeated freeze-thaw cycles.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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