2 3,5-Diiodo-L-tyrosine + Hydrogen peroxide → 2-Aminoacrylic acid + Thyroxine + 2 Water
Iodine + Iodotyrosine → 3,5-Diiodo-L-tyrosine + I(-)
3,5-Diiodo-L-tyrosine + Hydrogen peroxide + Iodotyrosine → 2-Aminoacrylic acid + Liothyronine + 2 Water
Iodine + L-Tyrosine → I(-) + Iodotyrosine
L-Tyrosine → Carbon dioxide + Tyramine
Homovanillin + NADP + Water → Homovanillic acid + Hydrogen Ion + NADPH
3-Methoxytyramine + Oxygen + Water → Ammonia + Homovanillin + Hydrogen peroxide
3,4-Dihydroxyphenylacetaldehyde + NAD + Water → 3,4-Dihydroxybenzeneacetic acid + Hydrogen Ion + NADH
Dopaquinone + L-Cysteine → Cysteinyldopa
Dopamine + S-Adenosylmethionine → 3-Methoxytyramine + S-Adenosylhomocysteine
Dopamine + Oxygen + Water → 3,4-Dihydroxyphenylacetaldehyde + Ammonia + Hydrogen peroxide
L-Dopa + L-Tyrosine + Oxygen → Dopaquinone + L-Dopa + Water
Dopaquinone + Leucodopachrome → L-Dopa + L-Dopachrome
3-Fumarylpyruvate + Water → Fumaric acid + Pyruvic acid
4-Fumarylacetoacetic acid + Water → Acetoacetic acid + Fumaric acid
Gentisate aldehyde + Oxygen + Water → Gentisic acid + Hydrogen peroxide
Homogentisic acid + Oxygen → Carbon dioxide + Gentisate aldehyde + Water
4-Hydroxyphenylpyruvic acid + Oxygen → Carbon dioxide + Homogentisic acid
4-Hydroxyphenylpyruvic acid ↔ 2-Hydroxy-3-(4-hydroxyphenyl)propenoic acid
Maleylacetoacetic acid → 4-Fumarylacetoacetic acid
Homogentisic acid + Oxygen → Maleylacetoacetic acid
4-Hydroxyphenylacetaldehyde + NAD + Water ↔ Hydrogen Ion + NADH + p-Hydroxyphenylacetic acid
Oxygen + Tyramine + Water → 4-Hydroxyphenylacetaldehyde + Ammonia + Hydrogen peroxide
Metanephrine + Oxygen + Water → 3-Methoxy-4-hydroxyphenylglycolaldehyde + Hydrogen peroxide + Methylammonium
Epinephrine + S-Adenosylmethionine → Metanephrine + S-Adenosylhomocysteine
Norepinephrine + S-Adenosylmethionine → Epinephrine + S-Adenosylhomocysteine
3-Methoxy-4-hydroxyphenylglycolaldehyde + NAD + Water → Hydrogen Ion + NADH + Vanillylmandelic acid
Normetanephrine + Oxygen + Water → 3-Methoxy-4-hydroxyphenylglycolaldehyde + Ammonia + Hydrogen peroxide
Norepinephrine + S-Adenosylmethionine → Normetanephrine + S-Adenosylhomocysteine
3,4-Dihydroxymandelaldehyde + NAD + Water ↔ 3,4-Dihydroxymandelic acid + Hydrogen Ion + NADH
3,4-Dihydroxyphenylglycol + S-Adenosylmethionine → S-Adenosylhomocysteine + Vanylglycol
3,4-Dihydroxymandelic acid + S-Adenosylmethionine ↔ S-Adenosylhomocysteine + Vanillylmandelic acid
Ascorbic acid + Dopamine + Oxygen → Dehydroascorbate + Norepinephrine + Water
3,4-Dihydroxybenzeneacetic acid + S-Adenosylmethionine → Homovanillic acid + S-Adenosylhomocysteine
3,4-Dihydroxymandelaldehyde + Hydrogen Ion + NADH ↔ 3,4-Dihydroxyphenylglycol + NAD
Norepinephrine + Oxygen + Water → 3,4-Dihydroxymandelaldehyde + Ammonia + Hydrogen peroxide
S-(hydroxymethyl)glutathione dehydrogenase
L-Tyrosine + Oxoglutaric acid ↔ 4-Hydroxyphenylpyruvic acid + L-Glutamic acid
L-Tyrosine + Oxygen + Water → 4-Hydroxyphenylpyruvic acid + Ammonia + Hydrogen peroxide
2-Hydroxy-3-(4-hydroxyphenyl)propenoic acid