GO:0006420:   arginyl-tRNA aminoacylation
The process of coupling arginine to arginyl-tRNA, catalyzed by arginyl-tRNA synthetase. The arginyl-tRNA synthetase is a class-I synthetase. The activated amino acid is transferred to the 2"-OH group of an alanine accetping tRNA. The 2"-O-aminoacyl-tRNA will ultimately migrate to the 3" position via transesterification.