An isolated class II aminoacyl-tRNA synthetase insertion domain is functional in amino acid editing.

Abstract excerpt

Aminoacyl-tRNA synthetases are responsible for activating specific amino acids and transferring them onto cognate tRNA molecules. Due to the similarity in many amino acid side chains, certain synthetases misactivate non-cognate amino acids to an extent that would be detrimental to protein synthesis if left uncorrected. To ensure accurate translation of the genetic code, some synthetases therefore utilize editing...

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