Gene Ontology classification of putative NRSE target genes. A. Genes were linked to 14 functional groups or “others” subgroup based on GO descriptions. B. The 111 common NRSE target genes in human, mouse, and frog genomes are enriched in neuronal functions. All categories are statistically significant with single and double asterisks showing p-values <0.05 and <0.01, respectively.