CD200 is expressed by a subset of B lymphocytes, some endothelial cells and by neurons. Recent studies have suggested that the CD200-CD200 ligand system is of importance in the control of macrophage and granulocyte activation. Applications: Suitable for use in Flow Cytometry and Immunohistochemistry. Other applications not tested. Recommended Dilutions: Flow Cytometry: Use 10ul to label 10e6 cells in 100ul. Immunohistochemistry: Frozen sections Optimal dilutions to be determined by the researcher. Recommended Secondary Reagents (FC): I1904-09G: IgG, H&L X-adsorbed (FITC) Recommended Secondary Reagents (IHC): I1904-65W: IgG, F(ab)2 (HRP) Pab RbxMo I1904-66C: IgG, F(ab)2, X-Adsorbed (HRP) Pab RbxMo Recommended Control: I1904-78R: IgG1 Murine Negative Control Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.