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Updated: Aug 26, 2026
Metabolic Pathway Confirmation and Discovery Through 13C-labeling of Proteinogenic Amino Acids
Published on: January 26, 2012
Intracellular compartmentation in the biosynthesis of caulerpenyne: study on intact macroalgae using
1Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Strasse 8, D-07745 Jena, Germany. pohnert@ice.mpg.de
Abstract:
The biosynthesis of caulerpenyne 1 was studied in the invasive green alga Caulerpa taxifolia. The investigation was performed on intact algae with stable-isotope-labeled precursors administered under mixotrophic growth conditions. According to the labeling pattern, after incorporation of 1-(13)C-acetate and (13)CO(2), respectively, the biosynthesis of the sesquiterpene backbone occurs in the chloroplast and follows the methyl-erythritol-4-phosphate (MEP) pathway. In contrast, the acetyl residues of caulerpenyne 1 are derived from a cytosolic resource. [structure: see text]
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