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Description
IL-15R alpha/CD215 Fc Chimera Protein, MouseProduct Specification Species Mouse Synonyms IL 15RA, IL 15R alpha, Interleukin 15 Receptor Subunit Alpha, CD215 Accession Q60819 Amino Acid Sequence Gly33 Lys205, with C terminal Human IgG1 Fc
Product Specification
| Species | Mouse |
| Synonyms | IL-15RA, IL-15R-alpha, Interleukin-15 Receptor Subunit Alpha, CD215 |
| Accession | Q60819 |
| Amino Acid Sequence | Gly33-Lys205, with C-terminal Human IgG1 Fc GTTCPPPVSIEHADIRVKNYSVNSRERYVCNSGFKRKAGTSTLIECVINKNTNVAHWTTPSLKCIRDPSLAHYSPVPTVVTPKVTSQPESPSPSAKEPEAFSPKSDTAMTTETAIMPGSRLTPSQTTSAGTTGTGSHKSSRAPSLAATMTLEPTASTSLRITEISPHSSKMTKIEGRMDPKSSDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK |
| Expression System | HEK293 |
| Molecular Weight | 60-85kDa |
| Purity | >95% by SDS-PAGE |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Tag | Human Fc Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, pH7.4 |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage |
· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | 1、Perrier C. et al. (2013) Interleukin-15 receptor α expression in inflammatory bowel disease patients before and after normalization of inflammation with infliximab. Immunology. 138(1): 47-56. |
Background
IL-15Ra chain is expressed by many cell types including monocytes, dendritic cells, natural killer cells, T cells and fibroblasts. Several isoforms of IL-15Ra exist and are generated either by alternative splicing or by proteolytic cleavage. Hence, IL-15Ra can be found as a membrane receptor or as a soluble receptor (sIL-15Ra); and as most isoforms of the receptor contain a sushi domain allowing very-high-affinity binding of IL-15, signaling or regulatory functions can be attributed to the receptor. Competition between soluble and membrane receptors can result in reduced biological activity of IL-15, though a super agonist effect of the soluble form was also observed. The signaling of IL-15 appears more complicated than for other cytokines because IL-15 primarily exists as a complex bound to IL-15Ra. When IL-15/IL-15Ra complexes are shuttled to the cell surface, they can stimulate opposing cells through the b/cC receptor complex (trans-presentation), or alternatively may allow an autocrine stimulation (cis-presentation).
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