CD9 is a 24-27kD transmembrane protein which is a member of the tetraspanin family. It is thought that the main role of tetraspanins is to form signal transducing complexes with integrins at the cell surface, and for this reason CD9 has multiple functions in cell adhesion and motility, platelet activation, gamete fusion and cell proliferation. CD9 has a functional role as a tumor metastatic suppressor and is expressed in melanomas, and colon, lung and breast carcinomas. Applications: Suitable for use in Flow Cytometry, Immunofluorescence, Immunoprecipitation and Western Blot. Other applications not tested. Recommended Dilutions: Optimal dilutions to be determined by the researcher. Storage and Stability: Store product at 4C in the dark. DO NOT FREEZE! Stable at 4C 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 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Note: Applications are based on unconjugated antibody.