Adenosine triphosphate + L-Cysteine + tRNA(Cys) → Adenosine monophosphate + Pyrophosphate + L-Cysteinyl-tRNA(Cys)
Thumb+Thumb+tRNA(Cys)Thumb+Thumb+L-Cysteinyl-tRNA(Cys)

Enzymes

  1. CARS protein
  2. Cysteine--tRNA ligase, mitochondrial