Credit Shannon Stapleton/Reuters. 1  The ADT Corporation, which provides home and business security systems for 6.5 million customers, is being acquired by the private equity firm Apollo Global Management for $6.9 billion in the largest leveraged buyout so far this year.
A large ribosomal subunit bonds to the initiation complex. The codon adjacent to the initiation codon bonds to its complementary anticodon, which is part of a free tRNA. The two amino acids still attached to their tRNAs align. With the help of rRNA, amino acids form peptide bonds. Then, the first tRNA is released.
Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis â the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.