MECP2 (Methyl-CpG Binding Protein 2) is a Protein Coding gene. Diseases associated with MECP2 include rett syndrome and mental retardation, x-linked, syndromic 13. Among its related pathways are SIDS Susceptibility Pathways and Macrophage Differentiation and Growth Inhibition by METS. GO annotations related to this gene include poly(A) RNA binding and chromatin binding. An important paralog of this gene is MBD4. DNA methylation is the major modification of eukaryotic genomes and plays an essential role in mammalian development. Human proteins MECP2, MBD1, MBD2, MBD3, and MBD4 comprise a family of nuclear proteins related by the presence in each of a methyl-CpG binding domain (MBD). Each of these proteins, with the exception of MBD3, is capable of binding specifically to methylated DNA. MECP2, MBD1 and MBD2 can also repress transcription from methylated gene promoters. In contrast to other MBD family members, MECP2 is X-linked and subject to X inactivation. MECP2 is dispensible in stem cells, but is essential for embryonic development. MECP2 gene mutations are the cause of most cases of Rett syndrome, a progressive neurologic developmental disorder and one of the most common causes of mental retardation in females. Alternative splicing results in multiple transcript variants encoding different isoforms.