At least 23 distinct versions of IFN-alpha exist. The individual components have molecular weights ranging between 19 and 26 kilodaltons, with proteins of lengths of 156-166 and 172 amino acids. The conserved amino acid sequence region between amino acid positions 115-151 is shared by all IFN-alpha subtypes. The different subtypes of IFN-alpha differ by only one or two nucleotide positions. Proteins truncated by 10 amino acids at the carboxy-terminal end are also known as natural variants. Human IFNA2b/IFNA2 Recombinant Protein (Lys46) is a highly pure recombinant protein developed by Assay Genie for use in a range of applications.
Human IFNA2b/IFNA2 Recombinant Protein (Lys46) (RPES1840)
Interferon Alpha-2, IFN-Alpha-2, Interferon Alpha-A, LeIF A, IFNA2
<1.0 EU per µg as determined by the LAL method.
Recombinant Human Interferon alpha-2a is produced by our E.coli expression system and the target gene encoding Cys24-Glu188 is expressed.
> 95 % as determined by reducing SDS-PAGE.
AP Mol Mass:
Lyophilized from a 0.2 µm filtered solution of 20mM PB; 150mM NaCl; pH 7.2.
This product is provided as lyophilized powder which is shipped with ice packs.
Stability and Storage:
Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
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