Figure 6. Distribution of NR1 and GluR2 clusters on spines and dendrite shafts.
(A) Representative images showing NR1- and GluR2-cluster localizations in DIV10-26 dendrites that were quadruple-stained with drebrin (green), NR1 (blue), GluR2 (Red) and MAP2 (white). Scale bar is 5μm. (B) Total densities of spine-associated NR1 (NR1-only & NR1+GluR2) and GluR2 (GluR2-only & NR1+GluR2) clusters per 20μm dendrite segment from DIV10-26 neurons. (C) Densities of shaft-localized NR1 and GluR2 clusters per 20μm dendrite segments from DIV10-26 neurons. Values were obtained by subtracting spine-associated cluster density from total cluster density. (D) Proportion of NR1 and GluR2 cluster on shaft (not present on spines) from DIV10-26. Values were obtained by dividing density of shaft-localized clusters with total cluster density. Data are presented as ± 95% confidence interval; p<0.05: * for NR1, # for GluR2, n.s, no significance.
