B. Lysates of N2a cells transfected with either WT or a phospho-mimic form of ATOH1 (S309D) were immunoblotted with anti-Atoh1 or β-actin. Quantification of relative levels of ATOH1 to the β-ACTIN (right panel). Mean± s.e.m. Student T-test between WT and S309D was performed. ***p < 0.001. Three slots of each experimental condition represent the three biological replicants of each condition. 