USH2 proteins remain at the periciliary membrane complex in Pdzd7−/− photoreceptors. Compared with wild-type (Pdzd7+/+) photoreceptors, the distributions of WHRN (green, A), USH2A (green, B) and GPR98 (green, C), relative to the ciliary rootlet (rootletin, red, left panels) and the axonemal microtubules (acetylated α-tubulin, red, right panels), appeared normal in Pdzd7−/− photoreceptors. Similar results were obtained from three pairs of Pdzd7+/+ and Pdzd7−/− mice. Scale bars, 5 µm.