RecombinantIFN-α2a,Human BK0078
Specifications
| 10μg / 50μg / 1mg |
Source:
Escherichia coli.
Molecular Weight:
19.2kDa, observed by reducing SDS-PAGE.
Purity:
> 95% by SDS-PAGE and HPLC analyses.
Biological activity:
ED50 < 0.1 ng/ml, measured by a cytotoxicity assay using TF-1 Cells, corresponding to a specific activity of > 1.0× 10ˆ7 units/mg.
AA Sequence:
CDL PQTHSLGSRR TLMLLAQMRK ISLFSCLKDR HDFGFPQEEF GNQFQKAETI PVLHEMIQQI FNLFSTKDSS AAWDETLLDK FYTELYQQLN DLEACVIQGV GVTETPLMKE DSILAVRKYF QRITLYLKEK KYSPCAWEVV RAEIMRSFSL STNLQESLRS KE
Endotoxin:
< 0.2 EU/μg, determined by LAL method.
Formulation:
Lyophilized after extensive dialysis against PBS.
Background:
Interferon-Alpha 2a (IFN-Alpha 2a), Human produced by leukocytes is a member of Interferon family. IFN-alpha is mainly involved in innate immune response against a broad range of viral infections. IFN-alpha 2 has three acid stable forms (a,b,c) signaling through IFNAR2. IFN-alpha 2a shares 99.4% , 98.8% aa sequence identity with IFN-alpha 2b and 2c respectively. IFN-alpha contains four highly conserved cysteine residues which form two disulfide bonds, one of which is necessary for biological activity.Recombinant Interferon-Alpha 2a (IFN-Alpha 2a), Human produced in E.coli is a single non-glycosylated polypeptide chain containing 165 amino acids. A fully biologically active molecule, rhIFN-Alpha has a molecular mass of 19.2kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.
Usage:
This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.
Physical Appearance:
Sterile Filtered White lyophilized (freeze-dried) powder.
Reconstitution:
Reconstituted in ddH2O at 100 μg/ml.
Storage:
Lyophilized recombinant human Interferon-Alpha 2a (rhIFN-Alpha 2a) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhIFN-Alpha 2a should be stable up to 2 weeks at 4°C or up to 3 months at -20°C.
