KPNA2 encodes the human gene, Karyopherin alpha 2 (RAG cohort 1, importin alpha 1). It may also be known as: Importin subunit alpha-1; Karyopherin subunit alpha-2; RAG cohort protein 1; SRP1-alpha; IPOA1; RCH1; SRP1alpha. The encoded protein has an amino acid length of 529 and a mass of 57.9 kDa. KPNA2 is a member of the Importin alpha family. Homologs of this gene exist in other organisms, including: Rat.