
CD21, also known as complement receptor type 2 (CR2) and EB virus receptor, is a member of complement activating regulator family. CD21 is mainly expressed in mature B cells, dendritic cells in lymphoid follicles and some T cells. It is mainly used for the judging of follicular dendritic cell tumor and the study of the regulation of immune complement activation.
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V roku 2007 získali Nobelovu cenu za fyziológiu alebo medicínu Mario R. Capecchi (USA), Sir Martin E...
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