part of import into nucleus nuclear import signal receptor activity https://github.com/geneontology/go-ontology/issues/14336 importin activity Reactome:R-HSA-2065550 GO:0061608 Combining with a nuclear import signal (NIS) on a cargo to be transported, to mediate transport of the cargo through the nuclear pore, from the cytoplasm to the nuclear lumen. The cargo can be either a RNA or a protein. 2014-03-03T07:58:18Z molecular_function dph nucleocytoplasmic carrier activity