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Fig. 6. BC migration defects of Drab5S43N and ShiK44A egg
chambers. Expression of Drab5S43N, Drab5WT and
ShiK44A in egg chambers was driven by slbo-GAL4 at 29°C. To
measure the extent of migration, the nurse cell compartment was divided into
four equivalent regions (1 to 4: clusters in region 1 have almost completely
migrated whereas clusters found in region 4 have not migrated at all; see
inset) and the position of the BC relative to this coordinate system
monitored. Drab5S43N and ShiK44A led to similar and
strong migration defects.