Figure 3

Copy-number determinations of green fluorescent protein (GFP)-ABCG2 expressing HUES9 clones. The sample 'pool' indicates the equimolar mixture of gDNA samples from the first four single-copy clones on Figure 2C. Later examination of the G2C3 line indicates that it is not derived from a clone but rather from a mixture of cells with five and six transposon copies. Values are means ± SEM of at least three independent measurements.