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Cloning and Sequence Analysis of 1-Deoxy-D-Xylulose 5-Phosphate Gene cDNA from Eucommia ulmoides

  • Received Date: 2011-11-06
  • Homologous DXR gene cDNA was isolated from leaves of Eucommia ulmoides by method of reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE) technique, and named after EuDXR. The nucleotide sequence of EuDXR was 1 814 bp and contains an open reading frame (ORF) of 1 437 bp encoding 478 amino acids with a molecular weight of about 51.71 kD,and the theoretical isoelectric point of which was 5.79, representative motifs of plant DXR and 26 potential functional sites were deduced in the amino acids sequence of EuDXR. The results of phylogenetic analysis suggested that the protein sequence of EuDXR was more similar to that of Zea mays and Oryza sativa than other species, and followed by Hevea brasiliensis, Arabidopsis thaliana and Nicotiana tabacum.
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Cloning and Sequence Analysis of 1-Deoxy-D-Xylulose 5-Phosphate Gene cDNA from Eucommia ulmoides

  • 1. Non-timber Forestry Research and Development Center, Chinese Academy of Forestry, Zhengzhou 450003, He’nan, China
  • 2. Key Laboratory of Non-wood Forest Products of State Forestry Administration, Changsha 410004 Hu’nan, China

Abstract: Homologous DXR gene cDNA was isolated from leaves of Eucommia ulmoides by method of reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE) technique, and named after EuDXR. The nucleotide sequence of EuDXR was 1 814 bp and contains an open reading frame (ORF) of 1 437 bp encoding 478 amino acids with a molecular weight of about 51.71 kD,and the theoretical isoelectric point of which was 5.79, representative motifs of plant DXR and 26 potential functional sites were deduced in the amino acids sequence of EuDXR. The results of phylogenetic analysis suggested that the protein sequence of EuDXR was more similar to that of Zea mays and Oryza sativa than other species, and followed by Hevea brasiliensis, Arabidopsis thaliana and Nicotiana tabacum.

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