Nucleoplasmic shuttling protein. Mediates the nuclear import of EIF4E by a piggy-back mechanism. Interacts with EIF4E. Interacts with importin beta only in the presence of importin alpha, suggesting a direct interaction with importin alpha. Widely expressed. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Karyopherin; Nuclear import; Translation