Figure 5. A mitochondria‐specific element may compensate for loss of function of the L1 stalk.

1. Overview of the POST state to indicate the L1 stalk location (box) on the LSU (violet). The SSU is shown in yellow.
2. Close‐up of the L1 stalk region on the LSU: EM densities for the Ti^POST state and POST state are shown without postprocessing. The position of the immobile L1 stalk is indicated by a dashed line. The mobile element that may replace L1 function is indicated with an arrow. Models for the LSU (violet) as well as aminoacylated fMet‐tRNA^Met (pink) and deacylated tRNA^Met (green) are included.