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Immunofluorescence microscopy of doxycycline induced CXCR4 surface protein expression in stable transfected K-562 cells. (A) Control untransfected K-562 cells, (B) Wild type CXCR4 stable transfected K-562 cells, (C) N119ACXCR4-pTRE2hyg stable transfected K-562 cells, (D) N119SCXCR4-pTRE2hyg stable transfected K-562 cells.
