The Crucial Role of DNA Methylation and MeCP2 in Neuronal Function The Crucial Role of DNA Methylation and MeCP2 in Neuronal Function. Fasolino M, Zhou Z. Genes. 8(5) pii: E141, 2017. Related people Zhaolan (Joe) Zhou, Ph.D. Professor, Department of Genetics; Chair, Graduate Program in Genetics and Epigenetics (G&E)