Recombinant Human Interleukin-15 receptor subunit alpha (IL15RA), partial (Active)

• Product Name Alternative:

  CD215; IL15RA; CD215 antigen; IL-15 receptor subunit alpha; IL-15RA; IL-15R-alpha; interleukin 15 receptor; alpha; interleukin-15 receptor subunit alpha; MGC104179

• Abbreviation:

  Recombinant Human IL15RA protein, partial (Active)

• Gene Name:

  IL15RA

• UniProt:

  Q13261-3

• Expression Region:

  31-172aa

• Organism:

  Homo sapiens (Human)

• Target Sequence:

  ITCPPPMSVEHADIWVKSYSLYSRERYICNSGFKRKAGTSSLTECVLNKATNVAHWTTPSLKCIKPAASSPSSNNTAATTAAIVPGSQLMPSKSPSTGTTEISSHESSHGTPSQTTAKNWELTASASHQPPGVYPQGHSDTT

• Tag:

  C-terminal Fc-tagged

• Type:

  Active Protein & In Stock Protein

• Source:

  Mammalian cell

• Field of Research:

  Immunology

• Relevance:

  Interleukin 15 Receptor alpha (IL-15Rα) is a transmembrane glycoprotein that plays a pleiotropic role in immune development and function, including the positive maintenance of lymphocyte homeostasis. IL-15Rα chain can bind soluble IL-15 and “transpresent” cytokine to the cells, allowing them to respond to IL-15. Soluble IL-15Rα can function as a specific high-affinity IL-15 antagonist. The soluble IL-15/IL-15Rα complexes exhibit a strong agonistic activity which is mediated through membrane-bound IL-15 receptor β and γ heterodimers and enables signaling to cells.

• Endotoxin:

  Less than 1.0 EU/μg as determined by LAL method.

• Purity:

  Greater than 95% as determined by SDS-PAGE.

• Activity:

  Yes

• Bioactivity:

  The ED50 as determined by its ability to block human IL-15-induced proliferation of CTLL‑2 mouse cytotoxic T cells is 0.35-3.5 ng/ml.

• Form:

  Lyophilized powder

• Buffer:

  Lyophilized from a 0.2 μm filtered 20 mM PB, 150 mM NaCl, pH 7.4

• Reconstitution:

  We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

• Function:

  High-affinity receptor for interleukin-15. Can signal both in cis and trans where IL15R from one subset of cells presents IL15 to neighboring IL2RG-expressing cells. Expression of different isoforms may alter or interfere with signal transduction. Isoform 5, isoform 6, isoform 7 and isoform 8 do not bind IL15. Signal transduction involves SYK.

• Molecular Weight:

  42.2 kDa

• Storage Conditions:

  The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

• Protein Length:

  Partial of Isoform 2