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CD172a (SIRP alpha) Monoclonal Antibody (P84), Functional Grade, eBioscience™, Invitrogen™
Rat Monoclonal Antibody
Supplier: Invitrogen 16172181
Description
Description: This P84 monoclonal antibody reacts with mouse CD172a, also known as signal regulatory protein a (SIRPa). This cell surface glycoprotein consists of three Ig-like extracellular domains and two cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). The ITIM domains have been demonstrated to recruit and bind the Src homology 2 domain-containing phosphatases SHP-1 and SHP-2. CD172a is expressed on monocytes, macrophages, dendritic cells, but not on T and B lymphocytes. Moreover, neurons and other tissues of the central nervous system have also been shown to express CD172a. The integrin-associated protein CD47 is the extracellular ligand for CD172a. Studies show that CD172a is involved in dendritic cell-mediated T cell activation, neutrophil migration, and phagocytosis. This monoclonal antibody has been reported to have neutralizing activity. Applications Reported: This P84 antibody has been reported for use in flow cytometric analysis and neutralization assays. Applications Tested: This P84 antibody has been tested by flow cytometric analysis of mouse bone marrow cells. This can be used at less than or equal to 0.25 μg per test. A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.
SIRP alpha (CD172a, signal-regulatory protein alpha) is a receptor-type transmembrane glycoprotein expressed on cells of myeloid origin, including granulocytes, dendritic cells (DCs), macrophages, mast cells and hematopoietic stem cells. SIRP alpha acts as a substrate for several activated tyrosine kinases, including EGFR, PDGFR, src and insulin receptor and is involved in the negative regulation of receptor tyrosine kinase-coupled signaling pathways. The ligand binding of SIRP alpha to integrin-associated protein CD47 results in tyrosine kinase phosphorylation of immunoreceptor tyrosine-based inhibitory motifs (ITIMs) within the cytoplasmic region of SIRP alpha, which mediates the recruitment and activation of the tyrosine phosphatases SHP-1 and SHP-2. Ligation of SIRP alpha with CD47 has been demonstrated in several regulatory processes, including the inhibition of host cell phagocytosis by macrophages and the bi-directional activation of T cells and DCs. SIRP alpha has regulatory effects on cellular responses induced by serum, growth factors, insulin, oncogenes, growth hormones and cell adhesion, and plays a general role in different physiological and pathological processes. Cancer cells highly express CD47, which activates SIRP alpha and inhibits macrophage-mediated destruction of cancerous cell growth.Specifications
CD172a (SIRP alpha) | |
Monoclonal | |
1 mg/mL | |
PBS with no preservative; pH 7.2 | |
P97797 | |
SIRPA | |
Affinity chromatography | |
RUO | |
19261 | |
4° C | |
Liquid |
Flow Cytometry, Functional Assay | |
P84 | |
Functional Grade | |
SIRPA | |
AI835480; Bit; brain Ig-like molecule with tyrosine-based activation motifs; Brain immunoglobulin like protein with tyrosine - based activation motifs; brain immunological-like with tyrosine-based motifs; brain-immunoglobulin-like molecule with tyrosine-based activation motifs; CD172; CD172 alpha; CD172 antigen-like family member A; CD172A; Inhibitory receptor SHPS-1; macrophage fusion receptor; Macrophage membrane protein MFP150; MFR; mSIRP-alpha1; Myd1; MYD-1; myD-1 antigen; p84; Protein tyrosine phosphatase non-receptor type substrate 1 (SHP substrate 1); protein tyrosine phosphatase, non-receptor type substrate 1; Protein tyrosine phosphatase, non-receptor type substrate 1 (SHP substrate 1); Ptpns1; SHP substrate 1; SHP-1; SHPS1; SHPS-1; signal regulatory protein alpha; signal-regulatory protein alpha; signal-regulatory protein alpha-1; Signal-regulatory protein alpha-2; Signal-regulatory protein alpha-3; SIRP; Sirpa; SIRPalpha; Sirp-alpha-1; SIRPalpha2; Sirp-alpha-2; Sirp-alpha-3; | |
Rat | |
50 μg | |
Primary | |
Mouse | |
Antibody | |
IgG1 κ |
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