On the origin of the transfer RNA molecule. |
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| Authors: | M Di Giulio |
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| Affiliation: | International Institute of Genetics and Biophysics, CNR, Naples, Italy. |
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| Abstract: | Data and arguments are given in favour of the hypothesis that the primitive tRNA molecule may have originated from a direct duplication event involving one of the two halves of the tRNA molecule. It seems that a molecule capable of assuming a hairpin structure was involved as a precursor in this duplication. The two halves of the present tRNAs could, therefore, be considered as paralogous. |
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