| Product name: |
Recombinant Human IFN alpha2b |
| Description: |
Recombinant Human Interferon Alpha-2b is produced by our E.coli expression system and the target gene encoding Cys24-Glu188(Lys46Arg) is expressed. |
| Accession: |
P01563 |
| Molecular weight: |
19.4 KDa |
| Apparent molecular weight: |
17 KDa, reducing conditions |
| Purity: |
Greater than 95% as determined by reducing SDS-PAGE. |
| Endotoxin: |
Less than 0.1 ng/μg (1 EU/μg) as determined by LAL test. |
| Biological activity: |
Measured in antiviral assay using A549 human lung cancer cells infected with vesicular stomatitisvirus (VSV) The ED50 for this effect is 5 ng/mL. |
| Redissolve: |
Always centrifuge tubes before opening.Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100μg/ml.
Dissolve the lyophilized protein in distilled water.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles.? |
| Storage: |
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7°C for 2-7 days.
Aliquots of reconstituted samples are stable at < -20°C for 3 months. |
| Delivery condition: |
The product is shipped at ambient temperature.
Upon receipt, store it immediately at the temperature listed below. |
| Background: |
At least 23 different variants of IFN-α 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-α subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-α subtypes differ in their sequences by only one or two positions. Naturally occurring variants also include proteins that are truncated by 10 amino acids at the carboxyl-terminal end. |
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