YFP-NL2 colocalizes with postsynaptic and presynaptic markers of inhibitory synapses at an early developmental age (P10). (A) Postsynaptic markers. (B) Presynaptic marlers. Antibody labeling and cross-correlation analysis were carried out as described for experiments at P21 to P24 (Figure 3). Shown here are single confocal planes of the immunolabeled vibratome sections. Higher magnification views are shown for the boxed regions.