Figure 4
A pair of reconstructed T30S particles, painted blue and green, as extracted from the EM reconstruction of T70S by removing the part assigned as T50S, overlaid on a part of the 7.2 Å MIR map (shown on the right), featuring a pronounced `toe' (t) at the foot of the 30S subunit and a significant-size beak (b) stemming from the head (H). The density seen between the two particles belongs to a lower particle. For comparison, the same part of the map is shown on the right. The directions of the unit-cell axes are shown in red, and that of the crystallographic twofold axis between the pair of T30S in white. |