Activity-dependent phosphorylation of MeCP2 threonine 308 regulates interaction with NCoR

Rett syndrome is caused by mutations in MeCP2, and this study identifies a site on MeCP2, T308, whose phosphorylation is regulated by neuronal activity: phosphorylation of T308 blocks the interaction of MeCP2 with the NCoR co-repressor complex, suppressing MeCP2's ability to repress transcription, and mice carrying mutations of MeCP2 T308 show Rett-syndrome-related symptoms.