Ubiquinone and other terpenoid-quinone biosynthesis
4-Hydroxyphenylpyruvic acid + 2 Oxygen → Carbon dioxide + Homogentisic acid
Homogentisic acid + Solanesyl pyrophosphate → 2-methyl-6-solanesyl-1,4-benzoquinol + 2 Carbon dioxide + Diphosphoric acid
6-geranylgeranyl-2,3-dimethylbenzene-1,4-diol → γ-Tocotrienol
6-Geranylgeranyl-2-methylbenzene-1,4-diol + S-Adenosylmethionine → 6-geranylgeranyl-2,3-dimethylbenzene-1,4-diol + S-Adenosylhomocysteine
L-Tyrosine + Oxoglutaric acid → 4-Hydroxyphenylpyruvic acid + L-Glutamic acid
S-Adenosylmethionine + γ-Tocotrienol → S-Adenosylhomocysteine + α-Tocotrienol
Homogentisic acid + Phytyl pyrophosphate → 2-Methyl-6-phytylhydroquinone + Carbon dioxide + Diphosphoric acid
2-Methyl-6-phytylhydroquinone + 2-methyl-6-solanesyl-1,4-benzoquinol + 6-Geranylgeranyl-2-methylbenzene-1,4-diol + S-Adenosylmethionine → plastoquinol-9
2,3-Dimethyl-5-phytyl-1,4-hydroquinone → γ-Tocopherol
2-Methyl-6-phytylhydroquinone + S-Adenosylmethionine → 2,3-Dimethyl-5-phytyl-1,4-hydroquinone + S-Adenosylhomocysteine
Geranylgeranyl-PP + Homogentisic acid → 6-Geranylgeranyl-2-methylbenzene-1,4-diol + Carbon dioxide + Diphosphoric acid
S-Adenosylmethionine + γ-Tocopherol → S-Adenosylhomocysteine + α-Tocopherol