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The P84 monoclonal antibody reacts with Signal-Regulatory Protein α (SIRPα), also known as CD172a. SIRPα is a type I transmembrane glycoprotein expressed on monocytes, macrophages, and dendritic cells. Neurons and other tissues of the central nervous system have also been shown to express SIRPα. Its ligand, CD47 is expressed by a wide variety of cells. SIRPα and CD47 regulate dendritic cell-mediated T cell activation, neutrophil migration, and phagocytosis. SIRPα diffuses laterally on the macrophage membrane and accumulates at a phagocytic synapse to bind CD47 which inhibits phagocytosis by macrophages. Anti-SIRPα antibodies that block the interaction of SIRPα with CD47 have been shown to suppress tumor formation in mice. The P84 antibody has been shown to have neutralizing activity in vivo and in vitro.
| Isotype | Rat IgG1, κ |
| Recommended Isotype Control(s) | InVivoMAb rat IgG1 isotype control, anti-horseradish peroxidase(BE0088) |
| Recommended InVivoPure Dilution Buffer | InVivoPure pH 7.0 Dilution Buffer(IP0070) |
| Immunogen | Mouse brain membrane protein |
| Reported Applications |
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| Formulation |
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| Endotoxin |
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| Purity |
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| Sterility | 0.2 μM filtered |
| Production | Purified from tissue culture supernatant in an animal free facility |
| Purification | Protein A |
| Molecular Weight | 150 kDa |
| RRID | AB_2819049 |
| Storage | The antibody solution should be stored at the stock concentration at 4°C. Do not freeze. |
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