title: Cloning and expression of a farnesyl diphosphate synthase in Centella asiatica (L.) Urban.
abstract: A cDNA encoding farnesyl diphosphate synthase (FPS; EC2.5.1.1/EC2.5.1.10) was isolated from Centella asiacita (L.) Urban, using degenerate primers based on two highly conserved domains. A full-length cDNA clone was subsequently isolated by rapid amplification of cDNA ends (RACE) PCR. The sequence of the CaFPS (C. asiatica farnesyl diphosphate synthase) cDNA contains an open reading frame of 1029 nucleotides encoding 343 amino acids with a molecular mass of 39.6 kDa. The deduced CaFPS amino acid sequence exhibits 84, 79, and 72%, identity to the FPSs of Artemisia annua, Arabidopsis thaliana, and Oryza sativa, respectively. Southern blot analysis suggested that the C. asiatica genome contains only one FPS gene. An artificially expressed soluble form of the CaFPS was identified by SDS-PAGE. It had high specific activity and produced farnesyl diphosphate as the major isoprenoid.
authors.affiliation: Department of Biology and Institute of Plant Resources, Chonnam National University, Gwangju 500-757, Korea.
authors.forename: Ok Tae
authors.initials: OT
authors.lastname: Kim
authors.forename: Jun Cheul
authors.initials: JC
authors.lastname: Ahn
authors.forename: Sung Jin
authors.initials: SJ
authors.lastname: Hwang
authors.forename: Baik
authors.initials: B
authors.lastname: Hwang
mesh_terms: D019883:Alkyl and Aryl Transferases / Q000235:genetics* / Q000378:metabolism*; D000595:Amino Acid Sequence; D001483:Base Sequence; D015139:Blotting, Southern; D028041:Centella / Q000201:enzymology*; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology; D051228:Geranyltranstransferase; D008969:Molecular Sequence Data; D016366:Open Reading Frames; D011106:Polyisoprenyl Phosphates / Q000378:metabolism; D011994:Recombinant Proteins / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D017386:Sequence Homology, Amino Acid; D012717:Sesquiterpenes
chemical_list: D018076:DNA, Complementary; D011106:Polyisoprenyl Phosphates; D011994:Recombinant Proteins; D012717:Sesquiterpenes; C004808:farnesyl pyrophosphate; D019883:Alkyl and Aryl Transferases; D051228:Geranyltranstransferase