Reposted from Quora http://www.quora.com/What-is-the-distance-between-the-3-18s-rRNA-the-Kozak-consensus-sequence-and-the-A-site-of-eukaryotic-ribosomes-during-protein-translation
The Kozak sequence is shown to be important in translation initiation, and the A-site is the anti-codon recognition site. If the distance is not known, how could I find out what it is? Is the crystal structure of the whole mRNA-rRNA-tRNA complex determined? If so, what modeling program would be best for establishing intermolecular distances?
