Fig. 9

Selection of subgroups with low levels of a marker. This Figure shows two examples where groups consisting of mostly KO or SP-A1 cells were selected by first applying a screening step in which cells were selected by levels below the limits listed in Table 4 (i.e. low levels). A second screening step selected cells from the first screen that were at or above the limit (from Table 4) for the given marker. Arrows are used as in Fig. 8. Panel A shows cells selected first by low levels of marker 10, then with high levels of marker 3 (15 of 17 are KO cells). Panel B shows cells selected by low levels of marker 12 and then with high levels of marker 10 (19 of 22 are SP-A1 cells). In the legend of the graph KO cells are in red and SP-A1 cells in black