Fig. 6: Structure and function of the mtLSU-Atp25 assembly complex.

Superposition of the assembly intermediate cryo-EM map (gray) with the mature mtLSU model (blue) reveals unfolded interfacial rRNA. a conformational change of the L1 stalk, missing bL9m (red). b presence of Atp25 (orange) that would clash with the mtSSU h14 and mS41, preventing subunit association.