gamma-L-glutamyl-L-cysteine + hercynine + O2 = gamma-L-glutamyl-hercynylcysteine S-oxide + H2O
gamma-l-glutamyl-l-cysteine + hercynine + o2 = gamma-l-glutamyl-hercynylcysteine s-oxide + h2o
"gamma-glutamyl hercynylcysteine S-oxide synthase"
"gamma-glutamyl hercynylcysteine s-oxide synthase"