• hercynine + oxygen + γ-L-glutamyl-L-cysteine → H₂O + γ-L-glutamyl-S-(hercyn-2-yl)-L-cysteine S-oxide (R10592)
  • Overexpression
    • Plasmid
      • Escherichia coli ET2
• S-adenosyl-L-methionine + L-histidine → S-adenosyl-L-homocysteine + H⁺ + hercynine (R4089)
  • Overexpression
    • Plasmid
      • Escherichia coli ET2