Practice question

Following translocation, tRNA lacking amino acid, termed deacylated tRNA, moves to E site, exit site, at interface between subunits with lower affinity facilitating release to cytosol for recharging. This stage completes directional movement A to P to E that maintains translational polarity and reading frame. E-site occupation influences allosteric signaling to A site, enhancing selectivity and preventing frameshift. Deacylated tRNA release occurs spontaneously or accelerated by E-site codon interactions, recycling tRNA back to aminoacyl-tRNA synthetase pool for reuse in protein synthesis.