Alternative 3′-terminal isoforms often become co-expressed in developing neurons
Ptbp1/2-dependent and constitutive mechanisms ensure co-expression of Cdc42 isoforms
Controlled utilization of Cdc42 exon 7 in neurons is required for proper axonogenesis
Exon-6-containing isoform of Cdc42 promotes formation of dendritic spines in vivo