详细说明
- Purity>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
- Endotoxin Level<0.10 EU per 1 μg of the protein by the LAL method.
- ActivityMeasured by its binding ability in a functional ELISA. Immobilized rmIL-6 Ra at 5 µg/mL (100 µL/well) on Mouse Anti-polyHistidine Monoclonal Antibody (Catalog # ) coated plates (0.25 µg/well) can bind rmIL-6 with a linear range of 0.8-50 ng/mL.
- SourceMouse myeloma cell line, NS0-derived Leu20-Glu357, with a C-terminal 10-His tag
- Accession #
- N-terminal Sequence
AnalysisLeu20 - Predicted Molecular Mass39 kDa (monomer)
- SDS-PAGE60-66 kDa, reducing conditions
| 1830-SR | | 1830-SR/CF |
| Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. | Formulation Lyophilized from a 0.2 μm filtered solution in PBS. | |
| Reconstitution Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. | Reconstitution Reconstitute at 100 μg/mL in sterile PBS. | |
| Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. | Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. | |
| Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
| Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Interleukin 6 (IL-6) is a multifunctional cytokine that exerts its activities by binding to a high-affinity receptor complex consisting of two membrane glycoproteins: an 80 kDa ligand binding subunit (IL-6 R alpha /CD126) and a 130 kDa nonligand-binding signal-transducing subunit (gp130/CD130) (1 - 4). The mouse IL-6 R alpha cDNA encodes a precursor type I transmembrane protein of 460 amino acids (aa) that contains a 19 aa signal sequence, a 345 aa extracellular ligand binding domain, a 21 aa transmembrane region, and a 75 aa cytoplasmic segment (2). The extracellular segment contains an Ig-like and a fibronectin-type III domain, plus a membrane proximal WSXWS motif. In their extracellular regions, mouse IL-6 R alpha shares 89%, 51% and 50% aa identity with rat, human and porcine IL-6 R alpha, respectively. Unlike gp130 that is expressed ubiquitously, the cellular distribution of IL-6 R alpha is predominantly limited to hepatocytes and leukocyte subpopulations such as monocytes, neutrophils, T and B cells. Soluble IL-6R alpha has been found in various body fluids (5). Two soluble receptor isoforms that arise either from proteolytic cleavage of the membrane-bound IL-6R alpha, or by alternative mRNA splicing (reported only in human) have been described (6, 7). Soluble IL-6 R alpha binds IL-6 with an affinity similar to that of the membrane-bound IL-6 R alpha. More importantly, the soluble IL-6 R alpha /IL-6 complex is capable of interacting with the membrane-bound gp130 to activate cells that lack an integral membrane IL-6 R alpha. It has been documented that elevated soluble IL-6 R is associated with numerous diseases including arthritic lesions, multiple myeloma and Crohn’s disease (6, 7).
- References:
- Yamasaki, K. et al. (1988) Science 241:825.
- Sugita, T. et al. (1990) J. Exp. Med. 171:2001.
- Hibi, M. et al. (1990) Cell 63:1149.
- Saito, M. et al. (1992) J. Immunol. 148:4066.
- Novick, D. et al. (1989) J. Exp. Med. 170:1409.
- Jones, S.A. et al. (2001) FASEB J. 15:43.
- Jones, S.A. and S. Rose-John (2002) Biochim. Biophys. Acta 1592:251.
- Long Name:Interleukin 6 Receptor alpha
- Entrez Gene IDs:3570 (Human); 16194 (Mouse)
- Alternate Names:CD126; IL-6 R alpha; IL6R alpha; IL6R; IL-6Ra
400-6226-992