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Definition: a membrane protein present on germinal center B cells, follicular dendritic cells, endothelium, and some epithelial cells which may act as a receptor for toxins of Escherichia coli or Shigella dysenteriae; expressed in Burkitt lymphomas and B-cell lymphomas of follicular center cell origin.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.