Cloning and characterization of the chloroplast elongation factor EF-Tu cDNA of Oryza sativa L.

Jeong Hwan Lee, Joong Won Lee, Yong Yoon Chung, Kyung Hee Paek, Jeong Sheop Shin, Choong Hyo Yun, Jeong Kook Kim

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


From the rice leaf cDNA library, we have cloned a cDNA encoding rice chloroplast translational elongation factor EF-Tu (tufA). The rice tufA cDNA clone contains 1678 nucleotides and codes for a 467 amino acid protein including a putative chloroplast transit peptide of 59 amino acid residues. The predicted molecular mass of the mature protein is approximately 45 kDa. This cDNA clone contains the 61 nucleotides of the 5′ untranslated region (UTR) and the 213 nucleotides of 3′ UTR. Amino acid sequence identity of the rice tufA with the mature chloroplast EF-Tu proteins of tobacco, pea, arabidopsis, and soybean ranges from 83% to 86%. The deduced polypeptide of the rice tufA cDNA contains GTP binding domains in its N-terminal region and chloroplast EF-Tu signature regions in the C-terminal region. The rice tufA appears to exist as a single copy gene, although its homologues of maize and oat exist as multiple copy genes. The rice tufA gene is located in chromosome 1 and is more highly expressed in the leaf than in root tissue.

Original languageEnglish
Pages (from-to)484-490
Number of pages7
JournalMolecules and cells
Issue number5
Publication statusPublished - 1999 Oct 31


  • Chloroplast
  • Elongation Factor Tu
  • Gene Families
  • Rice
  • Signature Regions

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology


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