EphA receptors regulate growth cone dynamics through the novel guanine nucleotide exchange factor ephexin

Research has been conducted on the Eph receptors transducing repulsive short-range signals for axon guidance via actin dynamics modulation within growth cones. The cloning and characterization of the Eph receptor-interacting protein ephexin have been carried out and the results indicate the creation of the molecular link between Eph receptors and the actin cytoskeleton providing a localized regulation of the growth cone motility.