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Invitrogen
This Antibody was verified by Cell treatment to ensure that the antibody binds to the antigen stated.
Notice: The eVolve™ line of antibody conjugates will be discontinued at the end of February, 2018 and replaced with our improved Invitrogen™ eBioscience™ Super Bright conjugated antibodies for flow cytometry. Individual eVovle catalog numbers will become unavailable as inventory depletes. This item has a corresponding Super Bright 645 format available - please see Product # 64-0037-42. We will continue to offer a selection of Qdot conjugated antibodies.
Description: The OKT3 monoclonal antibody reacts with an epitope on the epsilon-subunit within the human CD3 complex. The OKT3 antibody has been reported to have potent immunosuppressive properties in vivo and has been proven effective in the treatment of renal, heart and liver allograft rejection. The CD3 subunits, gamma, delta, and epsilon chains, are required for proper assembly, trafficking and surface expression of the TCR complex. CD3 is expressed by thymocytes in a developmentally regulated manner and by all mature T cells. Crosslinking of TCR initiates an intracellular biochemical pathway resulting in cellular activation and proliferation.
Applications Reported: This OKT3 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This OKT3 antibody has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at 5 µL per test. A test is defined as the amount 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.
For best results when using antibodies conjugated to eVolve™, we recommend a quick spin of the vial before use and avoid touching the bottom of the vial with the pipet tip.
Laser/Filter Recommendation: eVolve™ 655 can be optimally excited with laser lines from 325-405 nm, and emits near 655 nm. We recommend using the violet (405 nm) laser line for excitation and a 630LP with a 660/40 bandpass filter, or equivalent, for detection.
Fixation Recommendation: Antibodies conjugated to eVolve™ are compatible with eBioscience's fixation and permeabilization buffers.
Excitation: 350-635 nm; Emission: 657 nm; Laser: Ultraviolet Laser, Violet Laser
Storage and handling: For best results when using antibodies conjugated to eVolve™, we recommend a quick spin of the vial before use and avoid touching the bottom of the vial with the pipet tip.
The CD3 subunit complex which is crucial in transducing antigen-recognition signals into the cytoplasm of T cells and in regulating the cell surface expression of the TCR complex. T cell activation through the antigen receptor (TCR) involves the cytoplasmic tails of the CD3 subunits CD3 gamma, CD3 delta, CD3 epsilon and CD3 zeta. These CD3 subunits are structurally related members of the immunoglobulins super family encoded by closely linked genes on human chromosome 11. The CD3 components have long cytoplasmic tails that associate with cytoplasmic signal transduction molecules and this association is mediated at least in part by a double tyrosine-based motif present in a single copy in the CD3 subunits. CD3 may play a role in TCR-induced growth arrest, cell survival and proliferation. The CD3 antigen is present on 68-82% of normal peripheral blood lymphocytes, 65-85% of thymocytes and Purkinje cells in the cerebellum. It is never expressed on B or NK cells. Decreased percentages of T lymphocytes may be observed in some autoimmune diseases. The genes encoding the CD3 epsilon, gamma and delta polypeptides are located on chromosome 11. Defects in the CD3 gene are associated with CD3 immunodeficiency.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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