Figure 1
From: The concept of RNA-assisted protein folding: the role of tRNA
Alternative arrangements of tRNAs on mRNA. The diameter of the arms of tRNA in the classical cloverleaf structure is approximately 2 nm, double the distance between codons (1 nm). Side-by-side arrangement is not possible, only for every 2nd tRNA in this form (A). The unfolded (linear) structure permits a side-by-side arrangement for every tRNA as well as extensive complementary interactions between them (B).