WormMine: GOTerm GO:0009976 tocopherol cyclase activity GO

Name
GO

Identifier	Name	Description
GO:0003674	molecular_function	A molecular process that can be carried out by the action of a single macromolecular machine, usually via direct physical interactions with other molecular entities. Function in this sense denotes an action, or activity, that a gene product (or a complex) performs.
GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
GO:0009975	cyclase activity	Catalysis of a ring closure reaction.
GO:0009976	tocopherol cyclase activity	Catalysis of the reactions: delta-tocopherol = 2-methyl-6-phytyl-1,4-benzene-1,4-diol, gamma-tocopherol = 2,3-dimethyl-6-phytylbenzene-1,4-diol. delta-tocotrienol = 6-geranylgeranyl-2-methylbenzene-1,4-diol gamma-tocotrienol, and = 6-geranylgeranyl-2,3-dimethylbenzene-1,4-diol.

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