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  • Title: Structure and expression of elongation factor 1 alpha in tomato.
    Author: Pokalsky AR, Hiatt WR, Ridge N, Rasmussen R, Houck CM, Shewmaker CK.
    Journal: Nucleic Acids Res; 1989 Jun 26; 17(12):4661-73. PubMed ID: 2748335.
    Abstract:
    A full-length cDNA clone, LeEF-1, has been isolated from tomato for the alpha subunit of elongation factor 1 (EF-1 alpha), a polypeptide which plays a central role in protein synthesis. The 448 amino acid protein encoded by this cDNA appears highly homologous to other EF-1 alpha s having a high degree of similarity (75-78%) to EF1 alpha previously described from both lower eukaryotes and animals. Southern analysis indicated that EF-1 alpha belongs to a small multigene family of 4-8 members in tomato. The pattern of expression of EF-1 alpha mRNA in various tomato tissues was analyzed by Northern analysis, in vitro translation and in situ hybridization. EF-1 alpha mRNA is an abundant species and higher levels of mRNA were found in developing tissues such as young leaves and green fruit compared to the mRNA levels observed in older tissues. The increased levels of EF-1 alpha mRNA therefore appear to correlate with higher levels of protein synthesis in developing tissues.
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