Codon recognition fidelity of ribosomes at the first and second positions does not decrease during aging

Nozomu Mori, Kuniko Hiruta, Yoshiko Funatsu, Sataro Goto

Research output: Article

21 Citations (Scopus)


We have developed a novel method to examine the translational fidelity of mammalian ribosomes in vitro, where protamine mRNA was used as a template. This method enabled us to determine frequency of misrecognition of purine bases at the second position of arginine codons (AGR/AAR) in the mRNA. Using this method the fidelity of translation of ribosomes derived from mouse livers was found to remain unchanged from 2 to 29 months, the maximum life span of the animal. This conclusion is not consistent with the "error catastrophe" theory of aging. This is the first report in which translational fidelity of ribosomes of animals of various ages has been compared by an in vitro translation of a natural mRNA.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalMechanisms of Ageing and Development
Issue number1
Publication statusPublished - máj. 1983


ASJC Scopus subject areas

  • Ageing
  • Developmental Biology

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