A Quantitative Heterokaryon Assay to Measure the Nucleocytoplasmic Shuttling of Proteins
[Abstract] Many proteins appear exclusively nuclear at steady-state but in fact shuttle continuously back and forth between the nucleus and the cytoplasm. For example, nuclear RNA-binding proteins (RBPs) often accompany mRNAs to the cytoplasm, where they can regulate subcellular localization, translation and/or decay of their cargos before shuttling back to ...