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EC 2.5.1.39 Details
EC number
2.5.1.39
Accepted name
4-hydroxybenzoate polyprenyltransferase
Reaction
a polyprenyl diphosphate + 4-hydroxybenzoate = diphosphate + a 4-hydroxy-3-polyprenylbenzoate
Other name(s)
nonaprenyl-4-hydroxybenzoate transferase, 4-hydroxybenzoate transferase, p-hydroxybenzoate dimethylallyltransferase, p-hydroxybenzoate polyprenyltransferase, p-hydroxybenzoic acid-polyprenyl transferase, p-hydroxybenzoic-polyprenyl transferase, 4-hydroxybenzoate nonaprenyltransferase
Systematic name
polyprenyl-diphosphate:4-hydroxybenzoate polyprenyltransferase
CAS registry number
9030-77-7
Comment
This enzyme, involved in the biosynthesis of ubiquinone, attaches a polyprenyl side chain to a 4-hydroxybenzoate ring, producing the first ubiquinone intermediate that is membrane bound. The number of isoprenoid subunits in the side chain varies in different species. The enzyme does not have any specificity concerning the length of the polyprenyl tail, and accepts tails of various lengths with similar efficiency [2,4,5].
History
created 1992, modified 2010
EC Tree
2.5.1.12 created 1972, deleted 1976
2.5.1.13 created 1972, deleted 1976
2.5.1.14 created 1972, deleted 1976
2.5.1.37 created 1989, deleted 2004
2.5.1.40 created 1992, deleted 1999