Abstract
In contemporary organisms the aminoacylation of tRNAs is performed exclusively by protein aminoacyl-tRNA synthetases. However, in vitro selection experiments have identified RNA enzymes that exhibit the necessary characteristics to charge tRNA molecules with acyl groups in a way that is compatible with ribosomal translation, suggesting that such ribozymes may have fulfilled this function prior to the evolution of proteinaceous life. The current chapter provides a review of the history, structure, and function of these RNA aminoacyl synthetases, and discusses their practical application to “genetic reprogramming” and other biotechnologies.
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Abbreviations
- ABT:
-
2-Aminoethyl)amidocarboxybenzyl thioester
- AMP:
-
Adenosine monophosphate
- ARS:
-
Aminoacyl-RNA synthetase
- cab:
-
2-Amino-4-(2-chloroacetamido)butanoic acid
- CBT:
-
Chlorobenzyl thioester
- CME:
-
Cyanomethyl ester
- DBE:
-
3,5-Dinitro-benzyl ester
- FIT:
-
Flexible in vitro translation
- Gln:
-
Glutamine
- Phe:
-
Phenylalanine
- PheEE:
-
Phenylalanine ethyl ester
- RNase:
-
Ribonuclease
- tRNA:
-
Transfer RNA
- Tyr:
-
Tyrosine
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Acknowledgements
This work was supported by the JSPS Grant-in-Aid for the Specially Promoted Research (21000005) and the NRF (R31-2008-000-10103-0) to H.S. and partly supported by JST-CREST, Molecular Technologies.
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Passioura, T., Suga, H. (2013). Flexizymes, Their Evolutionary History and Diverse Utilities. In: Kim, S. (eds) Aminoacyl-tRNA Synthetases in Biology and Medicine. Topics in Current Chemistry, vol 344. Springer, Dordrecht. https://doi.org/10.1007/128_2013_421
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DOI: https://doi.org/10.1007/128_2013_421
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