Fig. 7. Cryo-images of native spliceosomes.
An EM field (left panel) and a gallery (right panel) of ice-embedded native spliceosomes on continuous carbon film. An RNA tail, likely covered with proteins, can be visualized emanating from each complex, with an appearance of a head and a tail. The left-hand scale bar represents 100 nm; the right-hand scale bar represents 25 nm. Adapted from Ref [37].