Eukaryotic translation elongation factor 1 alpha 1-autism association, Thymosin beta 4 – provides neuroprotection following traumatic brain injury, LPP-homolog – reported to promote synapse development, and Rab-13 – promotes neurite growth and development (23, 26, 30, 31, 32, 33, 37). Here, TMSB4X is linked to autism.