Recombinant Human SIRP gamma/CD172g Protein (His Tag) (PKSH030993)
For research use only.
| Synonyms | CD172 Antigen-Like Family Member B, CD172g, SIRP-Beta-2, SIRP-Gamma, SIRP-b2, SIRPB2, SIRPG, Signal-Fegulatory Protein Beta-2, Signal-Regulatory Protein Gamma |
| Species | Human |
| Expression Host | HEK293 Cells |
| Sequence | Met 1-Ser 364 |
| Accession | NP_061026.2 |
| Calculated Molecular Weight | 34.7 kDa |
| Tag | C-His |
| Bio-activity | Measured by its binding ability in a functional ELISA. Immobilized human SIRPG-His at 10 μg/ml (100 μl/well) can bind human CD47-Fc, The EC50 of human CD47-Fc is 0.58-1. 34 μg/ml. |
| Purity | > 96 % 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 | Signal-regulatory protein gamma (SIRPG/SIRP gamma) also known as CD172 antigen-like family member B, CD172g, and CD172g antigen, is a member of the signal-regulatory protein (SIRP) family, and also belongs to the immunoglobulin superfamily. SIRP family members are receptor-type transmembrane glycoproteins known to be involved in the negative regulation of receptor tyrosine kinase-coupled signaling processes. SIRPG/SIRP gamma/CD172g is probable immunoglobulin-like cell surface receptor. On binding with CD47, SIRPG can mediate cell-cell adhesion. SIRPG/SIRP gamma is engagement on T-cells by CD47 on antigen-presenting cells results in enhanced antigen-specific T-cell proliferation and costimulates T-cell activation. SIRPG/SIRP gamma/CD172g is detected in liver, and at very low levels in brain, heart, lung, pancreas, kidney, placenta and skeletal muscle. Expressed on CD4+ T-cells, CD8+ T-cells, CD56-bright natural killer (NK) cells, CD20+ cells, and all activated NK cells. This cytokine is mainly present in the paracortical T-cell area of lymph nodes, with only sparse positive cells in the mantle and in the germinal center of B-cell follicles. In the thymus, SIRPG is primarily expressed in the medulla on mature T-lymphocytes that have undergone thymic selection. |
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