Abbreviation
Recombinant Human IFNA2 protein (Active)
Purity
>98% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The specific activity determined by an anti-viral assay is no less than 1.6x108 IU/mg.
Alternative Names
IFN-alpha-2, LeIF A
Species
Homo sapiens (Human)
Expression Region
24-188aa
Target Protein Sequence
CDLPQTHSLG SRRTLMLLAQ MRRISLFSCL KDRHDFGFPQ EEFGNQFQKA ETIPVLHEMI QQIFNLFSTK DSSAAWDETL LDKFYTELYQ QLNDLEACVI QGVGVTETPL MKEDSILAVR KYFQRITLYL KEKKYSPCAW EVVRAEIMRS FSLSTNLQES LRSKE
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Protein Length
Full Length of Mature Protein of NM_000605
Tag Info
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
Lyophilized from a 0.2 µm filtered PBS, pH 7.4, with 0.02 % Tween-20
Lead Time
5-10 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
Interferon alpha-2 drives antiviral defense and immunomodulation through JAK/STAT signaling, making verified potency essential for meaningful functional data. This tag-free recombinant human IFNA2 (residues 24–188, full-length mature sequence per NM_000605) delivers a specific activity of ≥1.6 × 10⁸ IU/mg in anti-viral assays, providing a suitable basis for cell-based antiviral protection studies, STAT1/STAT2 phosphorylation kinetics, and use as a reference standard in interferon detection platforms. The yeast-expressed protein retains the complete mature sequence without fusion partners, supporting antibody development workflows including immunization, ELISA coating, and Western blot controls where tag interference would confound results. Purity exceeding 98% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for immune cell activation and differentiation assays—such as dendritic cell maturation or PBMC stimulation—where LPS-driven artifacts must be excluded.