Recombinant Human IL-1 beta/IL1B Protein (PKSH032628)
For research use only.
| Synonyms | IL1F, IL-1F, pro IL1F, IL-1, IL1-BETA, IL1F2, IL1 beta, IL1B, catabolin, IL-1B, pro Catabolin, pro IL1B, pro IL1F2, pro leukocytic endogenous mediator, pro leukocytic pyrogen, pro lymphocyte activating factor, pro mononuclear cell factor, IL-1F2, IL 1B, IL-1 beta |
| Species | Human |
| Expression Host | E.coli |
| Sequence | Ala117-Ser269 |
| Accession | P01584 |
| Calculated Molecular Weight | 18.5 kDa |
| Observed Molecular Weight | 17 kDa |
| Tag | C-His |
| Bio-activity | Measure by its ability to induce IL-8 secretion in HT29 cells. The ED50 for this effect is <2.0 ng/mL. The specific activity of recombinant human IL-1 beta is approximately >3 x 107 IU/mg. |
| Purity | > 98 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 0.1 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation |
Lyophilized from sterile PBS,pH 8.0. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
| Background | IL1B belongs to the IL-1 family. Interleukin 1 (IL-1) is a family of polypeptide cytokines consisting of two agonists, IL-1 alpha (IL-1F1) and IL-1 beta (IL-1F2) encoded by two distinct genes and perform identical biological functions. IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response. It is identified as endogenous pyrogens, and is reported to stimulate the release of prostaglandin and collagenase from synovial cells. |
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