QIP1, or Karyopherin alpha 4 (importin alpha 3), is a human gene encoded by KPNA4. It may also be known as: Importin subunit alpha-3; Importin alpha Q1; Qip1; Karyopherin subunit alpha-4; IPOA3; SRP3. The encoded protein has an amino acid length of 521 and a mass of 57.9 kDa. QIP1 is a member of the Importin alpha family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.