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Literature summary for 5.5.1.24 extracted from

  • Kanwischer, M.; Porfirova, S.; Bergmueller, E.; Doermann, P.
    Alterations in tocopherol cyclase activity in transgenic and mutant plants of Arabidopsis affect tocopherol content, tocopherol composition, and oxidative stress (2005), Plant Physiol., 137, 713-723.
    View publication on PubMedView publication on EuropePMC
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Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2,3-dimethyl-6-phytylbenzene-1,4-diol Arabidopsis thaliana
-
 gamma-tocopherol
-
 ?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
 Arabidopsis thaliana
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2,3-dimethyl-6-phytylbenzene-1,4-diol
-
 Arabidopsis thaliana gamma-tocopherol
-
 ?

Synonyms

Synonyms Comment Organism
VTE1
-
 Arabidopsis thaliana

General Information

General Information Comment Organism
malfunction a mutant deficient in tocopherol cyclase is totally devoid of tocopherol. Tocopherol deficiency results in the increase in ascorbate and glutathione. The simultaneous loss of tocopherol and glutathione in a tocopherol cyclase/cad2 double deletion mutant results in moderate oxidative stress that affects the stability and the efficiency of the photosynthetic apparatus (reduced growth, chlorophyll content, and photosynthetic quantum) Arabidopsis thaliana
metabolism tocopherol cyclase catalyzes the penultimate step of tocopherol synthesis Arabidopsis thaliana