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Literature summary for 2.1.1.95 extracted from

  • Abbasi, A.R.; Hajirezaei, M.; Hofius, D.; Sonnewald, U.; Voll, L.M.
    Specific roles of alpha- and gamma-tocopherol in abiotic stress responses of transgenic tobacco (2007), Plant Physiol., 143, 1720-1738.
    View publication on PubMedView publication on EuropePMC
Search for more literature for 2.1.1.95

Protein Variants

Protein Variants Comment Organism
additional information a Solanum tuberosum cDNA fragment gamma-TMT is introduced into intron-spliced hairpin RNA, RNAi, silencing construct driven by the constitutive cauliflower mosaic virus 35S promoter. RNAi knockdown of gamma-TMT results in an up to 95% reduction of alpha-tocopherol in leaves of transgenic plants, which is almost quantitatively compensated for by an increase in gamma-tocopherol. gamma-TMT-silenced plants show an improved performance when challenged with sorbitol or methyl viologen, but salt tolerance of gamma-TMT transgenic plants is strongly decreased, compared to the wild-type plants, phenotype, overview Nicotiana tabacum

Inhibitors

Inhibitors Comment Organism Structure
additional information salt and oxidative stress leads to reduced alpha-tocopherol and increased gamma-tocopherol levels Nicotiana tabacum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
S-adenosyl-L-methionine + gamma-tocopherol Nicotiana tabacum the ratio of alpha- to gamma-tocopherol is tissue-dependent in tobacco S-adenosyl-L-homocysteine + alpha-tocopherol
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 ?

Organism

Organism UniProt Comment Textmining
Nicotiana tabacum
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
flower
-
 Nicotiana tabacum
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leaf
-
 Nicotiana tabacum
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petal
-
 Nicotiana tabacum
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root
-
 Nicotiana tabacum
-
seed
-
 Nicotiana tabacum
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seedling
-
 Nicotiana tabacum
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sepal
-
 Nicotiana tabacum
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stamen
-
 Nicotiana tabacum
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stigma
-
 Nicotiana tabacum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine + gamma-tocopherol
-
 Nicotiana tabacum S-adenosyl-L-homocysteine + alpha-tocopherol
-
 ?
S-adenosyl-L-methionine + gamma-tocopherol the ratio of alpha- to gamma-tocopherol is tissue-dependent in tobacco Nicotiana tabacum S-adenosyl-L-homocysteine + alpha-tocopherol
-
 ?

Synonyms

Synonyms Comment Organism
gamma-TMT
-
 Nicotiana tabacum
gamma-tocopherol methyltransferase
-
 Nicotiana tabacum

Cofactor

Cofactor Comment Organism Structure
S-adenosyl-L-methionine
-
 Nicotiana tabacum