Postembedding labeling for GluN2A is unaltered in the MF pathway of Neto-null mice. A, C, E, Multiple Immunogold particles label postsynaptic GluN2A at oblique MF–CA3 synapses in WTs (arrows). B, D, F, In Neto-null mice, postsynaptic GluN2A subunits are similarly labeled with Immunogold (arrows). G, The same proportion of synapses is labeled in WT and Neto-null mice, with similar density distributions, resulting in comparable average densities between genotypes. Scale bar, 100 nm. dKO, Double KO.