Abstract: The present disclosure relates to a novel transcription regulatory master switch involved in neural development. The disclosure provides compositions and methods for regulating neural lineage specific genes and modulating the differentiation of stem cells into neural lineage cells.

Abstract: The invention provides a method for modulating gene expression by contacting a cellular system with a double-stranded ribonucleic acid molecule capable of associating with a regulatory machinery that controls transcription of one or more genes, wherein the association results in altered expression of the one or more genes. The invention is further directed to method for directing the differentiation of neuronal stem cells into neurons by contacting a cellular system with a double-stranded ribonucleic acid molecule capable of associating with a regulatory machinery that controls transcription of one or more genes involved in neuronal differentiation and directing the transcription of the one or more genes. In related embodiments, the invention provides particular compositions of double-stranded ribonucleic acid molecules as well as therapeutic and screening applications of the invention.

Abstract: This invention relates to a chimeric molecule comprising a region with binding affinity for a molecule capable of sliding and any functional region; a chimeric molecule comprising a molecule capable of sliding and any functional region; a chimeric molecule comprising a region with binding affinity for a molecule forming a complex with a molecule capable of sliding, and any functional region; a chimeric molecule comprising a protein capable of sliding and any functional nucleic acid; a chimeric molecule comprising a nucleic acid with binding affinity for a protein capable of sliding or a nucleic acid with binding affinity for a molecule forming a complex with said protein, and any functional nucleic acid; a vector comprising DNA encoding the chimeric molecule; and use thereof in medicaments, etc.