GO:0006423:   cysteinyl-tRNA aminoacylation
The process of coupling cysteine to cysteinyl-tRNA, catalyzed by cysteinyl-tRNA synthetase. A cysteinyl-tRNA synthetase is a class-I synthetase. The activated amino acid is transferred to the 2"-OH group of a cysteine-accetping tRNA. The 2"-O-aminoacyl-tRNA will ultimately migrate to the 3" position via transesterification.