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. 2011 May 31;6(5):e20612. doi: 10.1371/journal.pone.0020612

Figure 5. dGe-1 is required for assembly of osk RNPs.

Figure 5

(A) Drosophila wt (upper panel) or dGe-1Δ5 GLC (lower panel) ovarian extracts treated with cycloheximide and analyzed by centrifugation in a 10–45% sucrose density gradient. osk and actin mRNAs in the gradient fractions were detected by RNase protection assay. Absorption at 260 nm was measured to situate the monoribosome peak (80S) and polysomes. (B) Quantification of the RNase protection assays presented in (A). The relative levels of osk and actin mRNAs present in each fraction are indicated as a % of the total levels of both mRNAs present in wt (upper panel) and dGe-1Δ5 GLC (lower panel) ovarian extracts. (C–D) Distribution of Stau protein in starved wt (C) or dGe-1Δ5 GLC (D) ovaries. In nutritionally restricted wt oocytes, Stau (green) is present in large particles, which fail to form in starved dGe-1Δ5 GLC ovaries. Bar, 50 µm.