Geranylgeraniol formation in Croton stellatopilosus proceeds via successive monodephosphorylations of geranylgeranyl diphosphate

Natsajee Nualkaew, Wanchai De-Eknamkul, Toni M. Kutchan, Meinhart H. Zenk

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Abstract

The process of catalytic dephosphorylation of geranylgeranyl diphosphate (GGPP) to give geranylgeraniol (GGOH) in Croton stellatopilosus leaves was examined by in vivo chloroplast feedings with [1-3H]GGPP and [1- 3H]GGMP and in vitro enzyme-catalyzed reactions. The results strongly suggest that the formation of GGOH from GGPP proceeds in the chloroplasts via two successive monodephosphorylation reactions. Hence, we name the enzyme geranylgeranyl diphosphate phosphatase rather than geranylgeranyl diphosphatase based on its catalytic mechanism.

Original languageEnglish
Pages (from-to)8727-8731
Number of pages5
JournalTetrahedron Letters
Volume46
Issue number50
DOIs
StatePublished - Dec 12 2005

Keywords

  • Chloroplast
  • Croton stellatopilosus
  • Euphorbiaceae
  • Geranylgeraniol
  • Geranylgeranyl diphosphate phosphatase
  • Terpenoid biosynthesis

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