English: At the initiation phase, the initiator tRNA carrying methionine with its anticodon encounters the AUG start codon at the P-site of the ribosome. During elongation, the ribosome translocates in the 5' to 3' direction, at which point the amino acids attached by peptide bonds to the tRNA in the P-site can bond to the tRNA in the A-site, creating a long amino acid chain based on the codons in the RNA. As the ribosome translocates, the tRNA leaves the ribosome through the E-site, while new tRNA enters the A-site in order to continue elongating the amino acid chain.