10.7554/eLife.23644.009Figure 2—figure supplement 3.Stereo view of domain 4 in the pore complex with potential inter- and intramolecular interactions of loops viewed from two sides.The undecapeptide is green and selected residues are shown as sticks. The closest distance between the loops from different monomers is 4–5 Å. The map is contoured at 6.0 and 7.5 σ.DOI: http://dx.doi.org/10.7554/eLife.23644.009