(A-B") Colocalization of oskMS2-mCherry (red, A, B) (A', B') with Khc-EGFP (green, A) (A') or with EmGFP-Tm1-I (green B) (B') in ex vivo ooplasmic preparations.(C) Fraction of oskMS2-MCP-mCherry mRNPs located non-randomly within a 200 nm distance of one of the indicated GFP tagged protein particles in ex vivo ooplasmic preparations. MCP indicates MCP-EGFP which, like MCP-mCherry, can bind to MS2 loops. Staufen (Stau) is a dsRNA binding protein and bona fide partner of oskar mRNA (St Johnston et al., 1991; St Johnston et al., 1992). All values are significantly different from zero (p<10-3, one sample t-test).(D) Fraction of oskMS2-mCherry mRNPs co-localizing (max. 200 nm) non-randomly with Khc-EGFP particles in wild-type and in Tm1eg1/Tm1eg9 ooplasms in presence of two (white) or one (grey) copy of endogenous Khc.(C, D) P values of two sample t-tests are indicated above the relevant bar pairs. Numbers indicate the number of particle clusters (160 mRNPs in each) and the number of preparations (in brackets) analysed. Error bars represent 95% confidence intervals. 