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Definition: a type I transmembrane protein present on mature B cells, T cells, epithelium, hemopoietic precursors, and fibroblasts; induces cell proliferation and/or activation; expressed in lymphomas and/or pancreatic, hepatic, and bladder tumors.

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