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  • Title: Two nucleotides 5'-adjacent to the anticodon of rat cytoplasmic tRNA(Asp) are not edited.
    Author: Tomita K, Ueda T, Watanabe K.
    Journal: Biochimie; 1996; 78(11-12):1001-6. PubMed ID: 9150878.
    Abstract:
    Cytoplasmic tRNA(Asp) of rat liver was purified by the solid-phase hybridization method and its nucleotide sequence was analyzed by Donis-Keller's method. The results suggested that the two nucleotides next to the anticodon were identical to its gene sequence, a finding that is inconsistent with a previous report demonstrating by several methods that C32 and T33 on the tRNA(Asp) gene are post-transcriptionally converted to U32 and C33, respectively (Beier et al (1992) Nucleic Acids Res 20, 2679-2683). Our results indicate that the tRNA hybridized to an oligonucleotide, designed on the basis of the tRNA(Asp) gene sequence, undergoes no editing and possesses C32 and U33 as predicted from the DNA sequence. Analysis of cDNA synthesized from the purified tRNA(Asp) by the RT-PCR method supported the finding that RNA editing is not involved in the maturation process of rat cytoplasmic tRNA(Asp).
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