Anti-CD3, epsilon (Early T Cell Marker), APC conjugated, clone 5K4

CD3epsilon, a member of the immunoglobulin superfamily of cell surface receptors, is comprised of five invariable chain ranging in size from 16-28kD and is closely associated with the T cell antigen receptor (TCR). It is expressed on all T cells of all mouse strains (1,2). CD3 plays a major role in signaling during antigen recognition, leading to T-cell activation. In the presence of Fc receptor-bearing accessory cells, soluble antibody can activate primed and naïve T cell in vitro. Immobilized monoclonal antibody can also activate both normal T lymphocytes and cloned T cell lines provided the appropriate accessory signals are present (1,3,4). The monoclonal antibody is cytolytic, easily used for cell surface staining and a good immunoprecipitating antibody (1). Applications:  Identification and enumeration of CD3+ cells by flow cytometry 1, 2,  Immunoprecipitation 1,  In vitro depletion of CD3+ cells 1,  In vitro activation of T cells (accessory cells must be provided) 1, 3, 4,  Immunohistochemistry 5, Recommended Dilution: Flow Cytometry: < 1ug/10e6 cells, Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C before opening. DO NOT FREEZE! Stable at 4°C as an undiluted liquid. Dilute only prior to immediate use. Stable for at least 12 months. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.