CLIP-190 is not required for apical mRNA transport in embryos. (A) Immunoblot confirming loss of CLIP-190 protein (arrows) in clip-190 mutant ovary extracts. The clip190^KO allele was generated by homologous recombination; Df is the genomic deficiency Df(2L)BSC294, which removes the clip-190 locus. (B–D) Motile properties of particles of the localizing h RNA after injection into embryos of the indicated maternal genotypes. See Table S2 for full details of motile properties and number of particle tracks analyzed. **, P < 0.01 (ANOVA test). Error bars represent SEM.