Abstract:Aminoacyl‐tRNA synthetases catalyse a key reaction in protein biosynthesis. They match the 20 amino acids to the genetic code by specifically attaching them to their adaptors, transfer ribonucleic acid (tRNA) molecules. The reaction proceeds in two steps: the amino acid is first activated by adenosine triphosphate (ATP) to form aminoacyl adenylate and then the aminoacyl group is transferred to the terminal ribose of tRNA. This family of enzymes is divided into two classes, based on the similarities in primary … Show more
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