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Literature summary extracted from

  • Ishiko, H.; Shigeoka, S.; Nakano, Y.; Mitsunaga, T.
    Some properties of gamma-tocopherol methyltransferase solubilized from spinach chloroplasts (1992), Phytochemistry, 31, 1499-1500.
No PubMed abstract available

General Stability

EC Number General Stability Organism
2.1.1.95 complete inactivation within 72 h at 4°C, half time for inactivation is 30 h Spinacia oleracea

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.1.1.95 0.009
-
 S-adenosyl-L-methionine
-
 Spinacia oleracea

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.1.1.95 chloroplast
-
 Spinacia oleracea 9507
-
2.1.1.95 membrane
-
 Spinacia oleracea 16020
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.1.1.95 S-adenosyl-L-methionine + gamma-tocopherol Spinacia oleracea biosynthesis of alpha-tocopherol S-adenosyl-L-homocysteine + alpha-tocopherol
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
2.1.1.95 Spinacia oleracea
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.1.1.95 leaf
-
 Spinacia oleracea
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.1.1.95 0.00007
-
-
 Spinacia oleracea

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.1.1.95 S-adenosyl-L-methionine + beta-tocopherol 28% as effective as gamma-tocopherol Spinacia oleracea ?
-
 ?
2.1.1.95 S-adenosyl-L-methionine + delta-tocopherol 16% as effective as gamma-tocopherol Spinacia oleracea S-adenosyl-L-homocysteine + beta-tocopherol
-
 ?
2.1.1.95 S-adenosyl-L-methionine + gamma-tocopherol
-
 Spinacia oleracea S-adenosyl-L-homocysteine + alpha-tocopherol
-
 ?
2.1.1.95 S-adenosyl-L-methionine + gamma-tocopherol biosynthesis of alpha-tocopherol Spinacia oleracea S-adenosyl-L-homocysteine + alpha-tocopherol
-
 ?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.1.1.95 35
-
-
 Spinacia oleracea

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
2.1.1.95 90
-
 complete inactivation within 5 min Spinacia oleracea

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.1.1.95 7.5
-
-
 Spinacia oleracea