Western blot analysis of GluR1 in the SPM fraction of the mouse retina. (A) Immunoblots of 6 μg of retinal SPM protein from control animals and the rdta mice were incubated with anti-GluR1 antibody. The immunolabeling densities were calculated as the integrated density values (IDV) and plotted in B. (B) The graph presents the changes in the antibody binding to GluR1 in the littermate control and rdta mice. The average density calculated as IDV for the littermate controls was taken as 100%. The immunolabeling of GluR1 in the SPM fraction is significantly increased in the rdta retina. Values are means ± S.E.M (n = 3), P < 0.05, one way ANOVA with Bonferroni correction.