The CD24 antigen, which has a molecular weight of 35-45 kDa, is a glycosyl phosphatidylinositol (GPI)-anchored surface molecule. It is a member of a family that also includes HSA and CD52. Cross-linking of CD24 can induce increased intracellular Ca++ in mature B lymphocytes (Turni, 2002).CD24 is expressed at multiple stages of B cell development, beginning with the bone marrow CD34+ pro-B-cell compartment and continuing through mature surface IgM+/IgD+ B cells. Plasma cells express very low to negligible levels of CD24 (Le Bien, 1995). CD24 is not expressed on the cell surface of normal T cells or monocytes, but is expressed on mature granulocytes (Le Bien, 1995; Fukukawa, 1986). The antigen is also present on a variety of epithelial types (Turni, 2002).，官网链接：https://www.sigmaaldrich.cn/product/mm/fcmab188f 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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