Reaction catalyzed by tyrosine-tRNA ligase (6.1.1.1)
ATP
+
+
=
AMP
+
L-3,4-dihydroxyphenylalanine-tRNATyr
+
ATP
+
L-3,4-dihydroxyphenylalanine
+
tRNATyr
=
AMP
+
L-3,4-dihydroxyphenylalanine-tRNATyr
+
diphosphate
