Figure 2. Overall structure of the NPC.
Cryo-electron tomographic (cryo-ET) reconstruction of the human NPC from HeLa cells (EMDB code 3103, (Appen et al., 2015)). Cut-away view showing half of an NPC embedded in the nuclear envelope (yellow). Additional structural elements, i.e., cytoplasmic filaments and nuclear basket that have been excluded from the cryo-ET analysis, are added schematically. Nucleoporins from yeast and metazoa are listed and color-matched according to their approximate positions within the NPC.