Importin subunit alpha-6 (KPNA5)

Importin subunit alpha-6 (KPNA5) is a member of the importin alpha family that functions as a key adaptor in the active transport of proteins into the nucleus in eukaryotic cells. It recognizes and binds proteins containing classical or non-classical nuclear localization signals (NLS), forming a complex with karyopherin beta-1 (KPNB1), which then mediates translocation through the nuclear pore complex. KPNA5 is involved in critical cellular processes such as gene expression, signal transduction, cell cycle regulation, and immune response. It also mediates the nuclear import of viral proteins and regulatory factors, including STAT1/STAT2, and has been implicated in oncogenic processes and infectious disease mechanisms. KPNA5 is emerging as a prognostic biomarker in cancer, particularly due to its altered expression in various malignancies.

Other names

Karyopherin subunit alpha-5Importin alpha 6IPOA6SRP6karyopherin alpha 5 (importin alpha 6)importin subunit alpha-6

Not applicable; as above, no approved drugs specifically target this protein as a clinical mechanism\n- For potential experimental drugs or inhibitors (not currently clinically validated), putative mechanism would involve inhibition of nuclear import of cargo proteins (e.g., inhibition of oncogenic transcription factor or viral protein nuclear import)