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Tocopherol O-methyltransferase

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tocopherol O-methyltransferase
Identifiers
EC no.2.1.1.95
CAS no.84788-82-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
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In enzymology, a tocopherol O-methyltransferase (EC 2.1.1.95) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + gamma-tocopherol {\displaystyle \rightleftharpoons } S-adenosyl-L-homocysteine + alpha-tocopherol

Thus, the two substrates of this enzyme are S-adenosyl methionine and gamma-tocopherol, whereas its two products are S-adenosylhomocysteine and alpha-tocopherol.

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:gamma-tocopherol 5-O-methyltransferase. This enzyme is also called gamma-tocopherol methyltransferase. This enzyme participates in biosynthesis of steroids.

References

  • Camara B, D'Harlingue A (1985). "Demonstration and solubilization of S-adenosylmethionine - gamma-tocopherol methyltransferase from capsicum chromoplasts". Plant Cell Rep. 4: 31–32. doi:10.1007/BF00285499.
Transferase: one carbon transferases (EC 2.1)
2.1.1: Methyl-
N-
O-
Homocysteine
Other
2.1.2: Hydroxymethyl-,
Formyl- and Related
Hydroxymethyltransferase
Formyltransferase
Other
2.1.3: Carboxy-
and Carbamoyl
Carboxy
Carbamoyl
2.1.4: Amidine
Enzymes
Activity
Regulation
Classification
Kinetics
Types
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