Figure 8

Model of the KLH2 tridecamer (a, a'), and 13-Å reconstruction of the Leptoxis carinata mega-tridecamer (b, b'). Side views (upper panel) are shown as a longitudinal section through the cylinder wall to reveal the collar complexes. The volumes in a, a' were calculated, at 9-Å resolution, from 3 copies of the molecular model of the KLH1 decamer [2] that had been fitted into the 30-Å reconstruction of the KLH2 tridecamer (see Figure 4). The bracket in a indicates the „nucleating” didecamer.