CD45R (B220, Ly-5, Lyt-4) (APC/Cy5.5)

CD45R, also known as B220, a member of the protein tyrosine phosphate family and a major cell surface glycoprotein, represents a restricted form of the CD45 family which primarily recognizes only cells of B-lineage from pro-B cell through mature B lymphocytes and prior to the availability of anti-CD19 monoclonal antibodies was commonly used as a pan B-cell marker. It also reacts with certain activated T cells as well as non-MHC-restricted lytically active lymphokine-activated killer (LAK) cells. In vivo administration has been shown to affect differentiation of both T and B cells in normal mice and reduce the level of anti-DNA antibodies and lymphadenopathies in MRL/lpr mice.||Applications: |Suitable for use in Flow Cytometry and Immunohistochemistry. Other applications not tested.||Recommended Dilution:|Flow Cytometry: ≤0.2ug/10e6 cells|Optimal dilutions to be determined by the researcher.||Storage and Stability:|Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: APC/Cy5.5 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.