The 3D EM structure of Nup170. A video displaying the 3D EM structure of Nup170 (Fig. 1) rotating around the y and x axes. The video was produced using the University of California, San Francisco, Chimera package and recorded at 25 frames/s (Pettersen, E.F., T.D. Goddard, C.C. Huang, G.S. Couch, D.M. Greenblatt, E.C. Meng, and T.E. Ferrin. 2004. J. Comput. Chem. 25:1605–1612).