2.1.1.95: tocopherol C-methyltransferase
This is an abbreviated version!
For detailed information about tocopherol C-methyltransferase, go to the full flat file.
Word Map on EC 2.1.1.95
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2.1.1.95
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alpha-tocopherol
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lipophilic
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delta-t
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beta-tocopherols
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brassica
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homogentisate
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nitrotyrosine
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alpha-t
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phytyltransferase
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lipid-soluble
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chlorophyl
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biotechnology
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nutrition
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synthesis
- 2.1.1.95
- alpha-tocopherol
-
lipophilic
-
delta-t
- beta-tocopherols
-
brassica
- homogentisate
-
nitrotyrosine
-
alpha-t
-
phytyltransferase
-
lipid-soluble
-
chlorophyl
- biotechnology
- nutrition
- synthesis
Reaction
Synonyms
gamma tocopherol methyl transferase, gamma-TLMT, gamma-TMT, gamma-TMT1, gamma-TMT2, gamma-TMT3, gamma-tocopherol methyltransferase, gamma-tocopherol-like N-methyltransferase, gamma-tocopherol/tocotrienol methyltransferase, gammaTMT, PiNMT, S-adenosyl-L-methionine:gamma-tocopherol 5-O-methyltransferase, TMT, tocopherol O-methyltransferase, VTE4
ECTree
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General Information
General Information on EC 2.1.1.95 - tocopherol C-methyltransferase
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malfunction
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the absence of enzyme activity leads to more vulnerability towards different water treatments (frequency) in comparison with wild type
metabolism
physiological function
the enzyme catalyzes the final step in vitamin E biosynthesis. Enzyme overexpression has no effect on the absolute total content of either tocopherols or tocotrienols
metabolism
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final enzyme involved in tocopherol and tocotrienol biosynthesis. The enzyme is the major genetic factor for alpha-tocopherol content differences between japonica and indica rice subspecies
metabolism
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final enzyme involved in tocopherol and tocotrienol biosynthesis. The enzyme is the major genetic factor for alpha-tocopherol content differences between japonica and indica rice subspecies
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total phenolic compounds increase in transgenic plants overexpressing the enzyme mainly because of the increase in 12 major phenolic compounds, namely, benzoic acid, chlorogenic acid, protocatechuic acid, chlorogenic acid, t-cinnamic acid, vanillic acid, veratric acid, salicylic acid, homogentisic acid, gallic acid, ferulic acid, myricetin, quercetin, rutin, and kaempferol. Overexpression of the enzyme disrupts the metabolism of phenolic compounds and subsequently produces biochemical changes in the overexpressing transgenic plants
physiological function
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expression of gamma-tocopherol methyltransferase in chloroplasts results in massive proliferation of the inner envelope membrane and decreases susceptibility to salt and metal-induced oxidative stresses by reducing reactive oxygen species
physiological function
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enzyme overexpression increases the alpha-tocopherol content 4-5fold in transgenic Arabidopsis and around 6.5fold in transgenic maize kernels, and increases the alpha-/gamma-tocopherol ratio to approximately 15 and 17, respectively
physiological function
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leaf senescence is inhibited in enzyme overexpression alfalfa under dark. Enzyme overexpression increases alpha-tocopherol and alpha-tocotrienol content in leaves of alfalfa
physiological function
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the enzyme is related to resistance of abiotic adversity stress