Figure 1From: Nuclear import of influenza A viral ribonucleoprotein complexes is mediated by two nuclear localization sequences on viral nucleoproteinFractionation profile of the purification of vRNP complexes from influenza A by glycerol gradient centrifugation. Fractions were collected from the top (lane 1) to the bottom (lane 16) of a glycerol gradient and analyzed via reducing SDS-PAGE containing 10% polyacrylamide. The gel was stained with Coomassie blue. The arrows indicate the mobility of the influenza NP and M1 proteins. The positions of the molecular weight standards (in kDa) are indicated to the left.Back to article page