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Log fluorescence intensity profiles of mouse splenocytes gated on lymphocytes and analyzed on a BD LSR II flow cytometer (BD Biosciences, San Jose, CA) using 405 nm excitation and the specified emission filters. The data files were analyzed using FlowJo™ software (Treestar, Inc., www.flowjo.com). The black line represents cells stained with anti-mouse CD45R (B220) antibody conjugate and the gray line represents unstained cells. Note: Flow cytometric data shown may not necessarily have been generated using the enclosed lot of reagent. For this reason, and due to differences in flow cytometers and cytometer settings, results may vary from those illustrated above. We recommend titrating reagents to determine optimal conditions for use in your systems.
|Tested species reactivity||Mouse|
|Host / Isotype||Rat / IgG2a, kappa|
|Immunogen||exon A-specific epitope on CD45|
|Storage buffer||0.05M borate, pH 8.3, with 1M betaine|
|Contains||0.05% sodium azide|
|Storage Conditions||4° C|
|Tested Applications||Dilution *|
|Flow Cytometry (Flow)||Assay Dependent|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
CD45 (LCA, leukocyte common antigen) is a receptor-type protein tyrosine phosphatase ubiquitously expressed in all nucleated hematopoietic cells, comprising approximately 10% of all surface proteins in lymphocytes. CD45 glycoprotein is crucial in lymphocyte development and antigen signaling, serving as an important regulator of Src-family kinases. CD45 protein exists as multiple isoforms as a result of alternative splicing; these isoforms differ in their extracellular domains, whereas they share identical transmembrane and cytoplasmic domains. These isoforms differ in their ability to translocate into the glycosphingolipid-enriched membrane domains and their expression depends on cell type and physiological state of the cell. Besides the role in immunoreceptor signaling, CD45 is important in promoting cell survival by modulating integrin-mediated signal transduction pathway and is also involved in DNA fragmentation during apoptosis. CD45RA is an isoform of the CD45 complex and has restricted expression between different subtypes of lymphoid cells.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Lyt-4, Ly-5, L-CA, CD45R, loc, Cd45, B220, T200
leukocyte common antigen, lymphocyte antigen 5, lymphocyte common antigen, receptor-type tyrosine-protein phosphatase C, B220, CD45R, Cd45, Ly-5, Lyt-4, Cluster designation 45R