CD172a (SIRP alpha) Monoclonal Antibody (15-414), PerCP-eFluor™ 710, eBioscience™, Invitrogen™

Mouse Monoclonal Antibody

Catalog Number	Mfr. No.	Quantity
50-245-887	Invitrogen™ 46172942	100 Tests

Description

Description: This 15-414 monoclonal antibody reacts with human CD172a, also known as signal regulatory protein alpha (SIRP alpha). 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, granulocytes, dendritic cells, and CD34+CD38- hematopoietic progenitor cells but not on T and B lymphocytes. Moreover, neurons have also been shown to express CD172. 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. Applications Reported: This 15-414 antibody has been reported for use in flow cytometric analysis. Applications Tested: This 15-414 antibody has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at 5 μL (0.125 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. PerCP-eFluor™ 710 can be used in place of PE-Cy5, PE-Cy5.5 or PerCP-Cy5.5. PerCP-eFluor™ 710 emits at 710 nm and is excited with the blue laser (488 nm).

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

• Antigen: CD172a (SIRP alpha)
• Concentration: 5 μL/Test
• Classification: Monoclonal
• Form: Liquid
• Regulatory Status: RUO
• Gene Accession No.: P78324
• Gene Symbols: SIRPA
• Primary or Secondary: Primary
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Gene: SIRPA

• Clone: 15-414
• Applications: Flow Cytometry
• Conjugate: PerCP-eFluor 710
• Host Species: Mouse
• Target Species: Human
• Gene ID (Entrez): 140885
• Isotype: IgG2a κ
• Purification Method: Affinity chromatography
• Product Type: Antibody

For Research Use Only.