ID   5.5.1.24
DE   tocopherol cyclase.
CA   (1) delta-tocopherol = 2-methyl-6-phytyl-1,4-benzene-1,4-diol.
CA   (2) gamma-tocopherol = 2,3-dimethyl-6-phytylbenzene-1,4-diol.
CA   (3) delta-tocotrienol = 6-geranylgeranyl-2-methylbenzene-1,4-diol.
CA   (4) gamma-tocotrienol = 6-geranylgeranyl-2,3-dimethylbenzene-1,4-diol.
CC   -!- The enzyme has been described from plants and cyanobacteria.
CC   -!- It has similar activity with all four listed benzoquinol substrates.
CC   -!- Involved in the biosynthesis of vitamin E tocopherols and
CC       tocotrienols.
DR   Q94FY7, TOCC_ARATH ;  Q94FY8, TOCC_MAIZE ;
//