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.
Chymotrypsin cleaves those peptide bonds in which aromatic amino acids (tyrosine, phenylalanine, and tryptophan) contribute the carboxyl group. The carboxypeptidases cleave single amino acids off the free carboxyl ends of proteins. Carboxypeptidase A cleaves off aromatic or branched chain amino acids; carboxypeptidase B cleaves off basic amino acids.