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Fig. 4. Vas-eIF5B interaction is required for the progression of oogenesis. (A)
Western blot of ovarian extracts from wild-type (OreR),
vasPH165,
vasPH165;P{vas+} and
vasPH165;P{vas
617} females was
probed with anti-Vas. The same blot was probed with anti-4E-BP as a loading
control. (B) Ovaries from vas PH165 females produce few
mature stage 14 eggs owing to a developmental arrest during oogenesis. (C)
Expression of a wild-type vas+ transgene rescues this
defect of the vasPH165 mutation, allowing the production
of abundant stage14 eggs. (D) Ovaries from
vasPH165;P{vas
617} females
resemble those of vasPH165, exhibiting a similar
developmental arrest during oogenesis and producing few mature eggs.