Stimulator of protein export for NES-containing proteins . Also plays a role in the nuclear export of U1 snRNA, tRNA, and mRNA . The NXF1-NXT1 heterodimer is involved in the export of HSP70 mRNA in conjunction with ALYREF/THOC4 and THOC5 .
Nucleus. Nucleus speckle . Cytoplasm. Shuttles between the nucleus and the cytoplasm.
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