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Cloning and enzymology analysis of farnesyl pyrophosphate synthase gene from a superior strain ofArtemisia annua L.

Abstract

A cDNA(af1) encoding farnesyl pyrophosphate synthase AaFPS1 (FPS, EC2.5.1.1/EC2.5.1.10) from a high yieldArtemisia annua strain 025 has been cloned from its cDNA library. Sequence analysis showed that the cDNA encoded a protein of 343 amino acid (aa) residues with molecular weight of 39 kD. Deduced aa sequence of the cDNA was similar to FPS from other plants, yeast and mammals, containing 5 conserved domains found in both prenyl transferase and polyprenyl synthase. The expression of the cDNA inEscherichia coli showed measurable specific activity of FPSin vitro. The enzyme was purified by ion exchange chromatography and its kinetics was measured. These results would further promote the molecular regulation of artemisinin biosynthesis.

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Correspondence to Hechun Ye.

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Zhao, Y., Ye, H., Li, G. et al. Cloning and enzymology analysis of farnesyl pyrophosphate synthase gene from a superior strain ofArtemisia annua L.. Chin.Sci.Bull. 48, 63–67 (2003). https://doi.org/10.1007/BF03183336

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Keywords

  • artemisinin
  • farnesyl pyrophosphate synthase (FPS)