41. Phosphorylation of serine-41 on GAP-43 by PKC regulates neurite formation, regeneration, and synaptic plasticity. 42. The aligned nanofibers had a longer average neurite length compared to aligned microfibers, random microfibers, and random nanofibers. 43. APLP2 plays a role in synaptic plasticity, functioning to promote neurite outgrowth, neural cell migration and copper homeostasis. 44. When PTPmu is applied to a dish as an in vitro substrate, it promotes neurite outgrowth. 45. The encoded protein interacts with phosphorylated receptor tyrosine kinases to mediate neurite outgrowth and activation of the MAP kinase pathway. 46. He then showed that neurotrophic factors can modify the effects of neurotransmitters on neurite outgrowth, synaptogenesis and cell survival. 47. The protein encoded by this gene is a receptor tyrosine kinase that modulates neurite growth in the central nervous system. 48. An average neurite length for experiments using these samples was 22 ?40 �m and 24 ?44 �m, respectively. 49. NG2 is found on the surface of these cells and has been shown to inhibit neurite outgrowth extension, as well. 50. A neurite outgrowth assay is a type of experiment where neurons are placed on different adhesive substrates on tissue culture plates.