| Product Name |
homogentisate phytyltransferase |
| Example Structure |
 |
| Synonyms |
At2g18950, HPT, HPT1, slr1736, SynHPT, VTE2, VTE2-1, VTE2-2, VTE2.1 |
| EC Number |
2.5.1.115 |
| CAS Registry Number |
|
| Comments |
Requires Mg2+ for activity [3]. Involved in the biosynthesis of the vitamin E tocopherols. While the enzyme from the cyanobacterium Synechocystis PCC 6803 has an appreciable activity with geranylgeranyl diphosphate (EC 2.5.1.116, homogentisate geranylgeranyltransferase), the enzyme from the plant Arabidopsis thaliana has only a low activity with that substrate [1,3,4]. |
| Cofactor |
Mg2+ |
| History |
|
| Reactions |
Phytyl diphosphate + homogentisate = diphosphate + 2-methyl-6- phytylbenzene-1,4-diol + CO(2). |
