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Definition: a glycosylphosphatidylinositol-anchored membrane protein present on some B cells, some T cells, thymocytes, some epithelial and endothelial cells, and dendritic cells; expressed on most B-cell acute lymphoblastic leukemias, breast carcinomas, and large granular leukocyte leukemias.

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