We release new mouse monoclonal antibodies to MECP2, the methyl CpG binding protein 2. This is an important transcriptional regulator of neurons sequence defects in which are associated with Rett syndrome, a serious neurodevelopmental disorder. These are the IgG2b MCA-5H12 and the IgG1 MCA-4E11. We release an excellent chicken antibody to the neural stem cell marker Nestin, CPCA-Nes. We also release a rabbit polyclonal antibody to fibrillarin, RPCA-Fib an excellent marker of nucleoli.