Invitrogen™ CD150 Monoclonal Antibody (9D1), FITC, eBioscience™, Invitrogen™

Description

Description: The 9D1 monoclonal antibody reacts with mouse CD150, an ∽70 kDa transmembrane glycoprotein also known as Signaling Lymphocyte Activation Molecule (SLAM). CD150 is expressed by T (especially TH1) and B cells and its expression is rapidly upregulated on these cells upon activation. Immature thymocytes and dendritic cells also express this antigen. Signaling through SLAM in T cells induces proliferation and augmentation of the interferon-gamma response. Furthermore, SLAM is thought to play a role in adhesion between the T cell and antigen-presenting cell. 9D1 is reported to be an activating antibody. Mouse hematopoietic stem cells (HSC) can be identified using SLAM family markers, such as CD150+CD244-CD48-. For this application we recommend the use of antibody clone mShad150 (cat. 12-1502). Applications Reported: This 9D1 antibody has been reported for use in flow cytometric analysis. Applications Tested: This 9D1 antibody has been tested by flow cytometric analysis of mouse thymic and splenic cells. This can be used at less than or equal to 1 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. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. Excitation: 488 nm; Emission: 520 nm; Laser: Blue Laser.

CD150, also known as SLAM (Signaling Lymphocyte Activation Molecule), is a member of the immunoglobulin gene superfamily and plays a crucial role in T cell stimulation and immune cell interactions. It is constitutively expressed on peripheral blood memory T cells, T cell clones, immature thymocytes, and a proportion of B cells. CD150 expression is rapidly upregulated upon activation, particularly on naive T cells, Th1 cells, and activated B cells, which express the membrane-bound, soluble, and cytoplasmic isoforms of SLAM. In T cells, signaling through SLAM induces proliferation and enhances the interferon-gamma response. SLAM is also involved in adhesion between T cells and antigen-presenting cells, facilitating immune cell interactions. Homophilic SLAM-SLAM binding during B to B and B to T cell interactions is suggested to enhance the expansion and differentiation of activated B cells. CD150 serves as a receptor for the measles virus and acts as a co-activator on T and B cells. It interacts with SH2D1A and PTPN11 via its cytoplasmic domain, playing a role in signal transduction. Mutations in the CD150 gene may be associated with X-linked lymphoproliferative disease (XLP), highlighting its importance in immune regulation and disease pathology.