(B) CRMP2 expression in adult cortex (layers VI - IV), corpus callosum (CC) and hippocampal area CA1. CRMP2 (green) is expressed throughout the cortex and hippocampus, CRMP2A (red) is particularly strongly expressed in a subset of callosal axons. Nuclei are counterstained with Hoechst 33342. Scale bars: 50 μm. 