Recombinant Human IL7RA/CD127 Protein (His Tag)(Active)
SKU: PKSH031327-100
Recombinant Human IL7RA/CD127 Protein (His Tag)(Active)
SKU # | PKSH031327 |
Expression Host | HEK293 Cells |
Description
Synonyms | CDW, IL7R, CD127, CDW127, IL-7R-alpha, IL7RA, ILRA, IL-7R, IL-7RA, IL-7Rα, Interleukin-7 receptor subunit alpha, IL-7R&, alpha, CD 127, CD127 antigen, IL 7R, IL 7R alpha, IL-7 receptor subunit alpha, IL-7R subunit alpha, IL7Ralpha, Interleukin 7 receptor, Interleukin 7 receptor alpha chain, Interleukin 7 receptor isoform H5 6 |
Species | Human |
Expression Host | HEK293 Cells |
Sequence | Met 1-Gly 236 |
Accession | NP_002176.2 |
Calculated Molecular Weight | 26.3 kDa |
Observed Molecular Weight | 45-50 kDa |
Tag | C-His |
Bio-activity | Measured by its ability to bind biotinylated mouse TSLP-his in functional ELISA. |
Properties
Purity | > 92 % as determined by reducing SDS-PAGE. |
Endotoxin | < 1.0 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 7.4 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
Interleukin 7 Receptor alpha (IL-7RA), also known as CD127, is a 75 kDa hematopoietin receptor superfamily member that plays an important role in lymphocyte differentiation, proliferation, and survival. IL-7RA signaling is essential for T-cell development and regulation of naive and memory T-cell homeostasis. Studies from both pathogenic and controlled HIV infection indicate that the containment of immune activation and preservation of CD127 expression are critical to the stability of CD4(+) T cells in infection. A better understanding of the factors regulating CD127 expression in HIV disease, particularly on T(CM) cells, might unveil new approaches exploiting the IL-7/IL-7R receptor pathway to restore T cell homeostasis and promote immune reconstitution in HIV infection. Factors relevant to HIV infection that could potentially decrease CD127 expression on human CD8(+) T cells. CD127 down-regulation may be an important contributor to HIV-associated T-cell dysfunction. In addition to IL-7, IL-7RA also associates with TSLPR to form the functional receptor for thymic stromal lymphopoietin (TSLP) which indirectly regulates T cell development by modulating dendritic cell activation. Mutations in the human IL-7RA gene cause a type of severe combined immunodeficiency in which the major deficiencies are in T cell development, whereas B and NK cells are relatively normal in number. Soluble CD127 (sCD127) appears to play an important role in the immunopathogenesis of several chronic infections, multiple sclerosis, and various cancers.