GENE REGULATION VIA CONDITIONAL NUCLEAR LOCALIZATION OF GENE MODULATING POLYPEPTIDES

摘要

The present disclosure provides a system for regulating expression of a target polynucleotide in a cell. The system may comprise a chimeric polypeptide comprising a gene modulating polypeptide fused in-frame with a heterologous nuclear localization domain. The heterologous nuclear localization domain may be operable to translocate the chimeric polypeptide to a cell nucleus upon activation by an active cellular signaling pathway. The cellular signaling pathway may be inducible in response to an extracellular signal. In response to the extracellular signal, the chimeric polypeptide may localize to the cell nucleus and the gene modulating polypeptide may regulate expression of a target polynucleotide in the cell nucleus.