Methyl-CpG binding protein 2 messenger RNA (MECP2 mRNA)

Methyl-CpG binding protein 2 (MECP2) messenger RNA is the transcript of the MECP2 gene, which encodes a protein essential for normal brain function and epigenetic regulation (UniProt P51608). The MECP2 protein acts as a biochemical switch, binding to methylated DNA to regulate the expression of numerous downstream genes involved in synaptic plasticity and neuronal maturation (NIH, 2023). Mutations in the MECP2 mRNA, including point mutations and premature stop codons, lead to Rett syndrome, a severe X-linked neurodevelopmental disorder (PubMed PMID: 33432158). Conversely, an excess of the transcript results in MECP2 duplication syndrome, highlighting the critical need for precise dosage control. As a therapeutic target, MECP2 mutant mRNA is being addressed through novel modalities such as site-specific RNA editing (e.g., ADAR-mediated base editing) to correct mutations at the transcript level without altering the genome. Other approaches include antisense oligonucleotides (ASOs) to modulate protein levels and small molecule read-through agents to restore full-length protein production from nonsense mutations.

Other names

MECP2 transcriptMethyl-CpG-binding protein 2 mRNAMRX16 mRNARTT mRNAAUTSX3 mRNA

Correction of genetic mutations via site-specific RNA editing (e.g., ADAR-mediated G-to-A conversion), suppression of premature stop codons (read-through therapy), or modulation of protein expression levels using antisense oligonucleotides (ASOs).