FMR4 is a chromatin-associated long noncoding RNA that modulates promoter histone methylation genome-wide.
FMR4-mediated histone methylation changes are reflected by changes in expression of neurodevelopmental genes.
Putative FMR4 target genes may be related to its function as a positive regulator of neural precursor cell proliferation.
Functional, primate-specific long noncoding RNAs such as FMR4 lend complexity to normal biology and disease pathogenesis.