Reaction catalyzed by tryptophan 7-halogenase (1.14.19.9)
+
FADH2
+
chloride
+
+
=
+
FAD
+
2
H2O
5-hydroxy-L-tryptophan
+
FADH2
+
chloride
+
O2
+
H+
=
7-chloro-5-hydroxy-L-tryptophan
+
FAD
+
2 H2O
