Expression of ▵LNGFR in liquid cultures of control (C), SFCM-transduced, and GATA-SFCM–transduced CD34⁺ cells. Cultures were analyzed 48 hours after transduction for expression of ▵LNGFR and CD34 (day 6) and 2 days after induction of differentiation for expression of ▵LNGFR and the lineage-specific markers GpA and CD13 (day 8). CD34⁺, GpA⁺, and CD13⁺ cells are shown in blue, red, and green colors, respectively. Values indicate the percentage of ▵LNGFR⁺cells in the CD34⁺, GpA⁺, or CD13⁺ fractions (boxed). Cells were stained with FITC-conjugated anti-LNGFR (X axis) and PE-conjugated anti-CD34, GpA, and CD13 (Y axis) antibodies.