IUBMB Enzyme Nomenclature


Accepted name: phytol kinase

Reaction: CTP + phytol = CDP + phytyl phosphate

Other name(s): VTE5 (gene name)

Systematic name: CTP:phytol O-phosphotransferase

Comments: The enzyme is found in plants and photosynthetic algae [2] and is involved in phytol salvage [1]. It can use UTP as an alternative phosphate donor with lower activity [2].

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Ischebeck, T., Zbierzak, A.M., Kanwischer, M. and Dormann, P. A salvage pathway for phytol metabolism in Arabidopsis. J. Biol. Chem. 281 (2006) 2470-2477. [PMID: 16306049]

2. Valentin, H.E., Lincoln, K., Moshiri, F., Jensen, P.K., Qi, Q., Venkatesh, T.V., Karunanandaa, B., Baszis, S.R., Norris, S.R., Savidge, B., Gruys, K.J. and Last, R.L. The Arabidopsis vitamin E pathway gene5-1 mutant reveals a critical role for phytol kinase in seed tocopherol biosynthesis. Plant Cell 18 (2006) 212-224. [PMID: 16361393]

[EC created 2014]

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