One of several diseases associated with the human X-linked gene MECP2; this severe disorder is seen in hemizygous male infants. For descriptions of related experiments in flies, see the human disease model report for neurodevelopmental disorders, MECP2-related (FBhh0000362).
[updated Aug. 2016 by FlyBase; FBrf0222196]
[ENCEPHALOPATHY, NEONATAL SEVERE, DUE TO MECP2 MUTATIONS](https://omim.org/entry/300673)
[METHYL-CpG-BINDING PROTEIN 2; MECP2](https://omim.org/entry/300005)
Variable combinations of symptoms of neonatal encephalopathy are observed, including severe developmental delay, respiratory insufficiency, intractable seizures, abnormal muscle tone and movements, and early death. [from MIM:300673; 2016.08.08]
This form of neonatal severe encephalopathy is caused by mutations in the X-linked MECP2 gene. Only males are affected; the same mutational lesions cause Rett syndrome in heterozygous females. [from MIM:300673; 2016.08.08]
MECP2 is dispensible in stem cells, but is essential for embryonic development. [from Gene Cards, MECP2; 2016.08.08]
MECP2, which binds methylated CpGs, is a chromatin-associated protein that can both activate and repress transcription; it is required for normal maturation of neurons. [from MIM:300005; 2016.08.08]