centrosome

Growth Associated Protein 43 (GAP43), also termed B-50, F1 or P-57, is a neuron-specific cytoplasmic protein encoded by the GAP-43 gene in humans. The expression of GAP 43 is associated with neural development and synaptic plasticity. A high level of GAP43 expression is observed in neuronal growth cones during development, at axonal regeneration after injury and is phosphorylated after long-term potentiation (1).