Reaction catalyzed by cysteine-tRNA ligase (6.1.1.16)
ATP
+
+
=
AMP
+
+
L-alpha-aminobutyryl-tRNACys
ATP
+
2-aminobutyric acid
+
tRNACys
=
AMP
+
diphosphate
+
L-alpha-aminobutyryl-tRNACys
