Figure 6.
Immunocytochemistry showing mislocalization of M-opsin in irbp −/− photoreceptors. A, M-opsin immunoreactivity in a section of distal retina from a wild-type mouse. B, M-opsin immunoreactivity in a distal retina section from an irbp −/− mouse. C, M-opsin immunoreactivity in a distal retina section from an irbp −/− mouse treated with 9-cis-RAL. D, Representative differential interference contrast (DIC) image of a similar retina section from an irbp −/− mouse showing cell layers: sclera and choroid (Sc/Ch), outer and inner segment layer (OS/IS), outer nuclear layer (ONL), OPL. E, Estimates of M-opsin and S-opsin percentage-mislocalization derived by dividing OPL immunofluorescence by the sum of OPL and OS immunofluorescence. Note the restoration of M-opsin and S-opsin mislocalization in irbp −/− mice after administering 9-cis-RAL.