Study Reveals Genetic Basis for Pathogenicity in MeCP2 Mutations
A recent study has uncovered the genetic basis for why certain C-terminal frameshift deletions in the MECP2 gene cause Rett syndrome (RTT) in some individuals but not in others. The research highlights that the presence of a -PPX motif at the C-terminus of the truncated protein is a key determinant of pathogenicity. The study utilized mouse models and adenine base editing technology to demonstrate that altering the C-terminal sequence can prevent the loss of MeCP2 protein, offering potential therapeutic strategies for RTT patients. 
