A, B. Purified recombinant Kap114p was mixed with RanQ69L or yTBP and analyzed by SEC. SEC (Superdex 200) elution profiles of the (A) Kap114pRanQ69L and (B) Kap114pyTBP complexes. Peak fractions were analyzed by SDS-PAGE and stained with Coomassie blue. The void volume (Vo) of the peak fraction and absorbance (a.u.) at 280 nm for each complex is indicated. 