| Description : |
This gene encodes a cytokine distantly related to type I interferons and the IL-10 family. This gene, interleukin 28A (IL28A), and interleukin 29 (IL29) are three closely related cytokine genes that form a cytokine gene cluster on a chromosomal region mapped to 19q13. Expression of the cytokines encoded by the three genes can be induced by viral infection. All three cytokines have been shown to interact with a heterodimeric class II cytokine receptor that consists of interleukin 10 receptor, beta (IL10RB) and interleukin 28 receptor, alpha (IL28RA). |
| Source : |
E.coli |
| Species : |
Mouse |
| Form : |
Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH 7.4. |
| Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by an anti-viral assay using human HepG2 cells infected with encephalomyocarditis is less than 30 ng/ml, corresponding to a specific activity of > 3.3 × 10⁴ IU/mg. |
| Molecular Mass : |
Approximately 19.6 kDa, a single non-glycosylated polypeptide chain containing 174 amino acids. |
| Protein length : |
174 |
| AA Sequence : |
DPVPRATRLPVEAKDCHIAQFKSLS PKELQAFKKAKGAIEKRLLEKDMRC SSHLISRAWDLKQLQVQERPKALQA EVALTLKVWENINDSALTTILGQPL HTLSHIHSQLQTCTQLQATAEPKPP SRRLSRWLHRLQEAQSKETPGCLED SVTSNLFQLLLRDLKCVASGDQCV |
| Endotoxin : |
Less than 1 EU/µg of rMuIFN-λ3/IL-28B as determined by LAL method. |
| Purity : |
>98% by SDS-PAGE and HPLC analysis. |
| Storage : |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 centigrade as supplied. 1 month, 2 to 8 centigrade under sterile conditions after reconstitution. 3 months, -20 to -70 centigrade under sterile conditions after reconstitution. |
| Reconstitution : |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤-20 centigrade. Further dilutions should be made in appropriate buffered solutions. |
