highly significantP value < 2 × 10 −16
As predicted, αsyn-O treatment generated an increase in the number of editing sites in all cultures (15.8% in astrocyte-only, 26.2% in neuron-only, and 11.1% in astro-neuronal cultures), which was highly significant (chi-squared P value < 2 × 10 −16 for increased exonic proportion in all cases).