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Information on EC 5.5.1.24 - tocopherol cyclase

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IUBMB Comments
The enzyme has been described from plants and cyanobacteria. It has similar activity with all four listed benzoquinol substrates. Involved in the biosynthesis of vitamin E (tocopherols and tocotrienols).
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The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
2,3-dimethyl-5-phytyl-1,4-hydroquinone cyclase, DMPQ cyclase, slr1737, SXD1, TC/VTE1, VTE1, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
delta-tocopherol = 2-methyl-6-phytylbenzene-1,4-diol
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(1)
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delta-tocotrienol = 6-geranylgeranyl-2-methylbenzene-1,4-diol
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(3)
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gamma-tocopherol = 2,3-dimethyl-6-phytylbenzene-1,4-diol
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(2)
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gamma-tocotrienol = 6-geranylgeranyl-2,3-dimethylbenzene-1,4-diol
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(4)
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