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Updated: Jul 29, 2026

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses
Published on: February 25, 2011
Recognition of tRNA by aminoacyl-tRNA synthetase from hyperthermophilic archaea, Aeropyrum pernix K1
J Yokozawa1, Y Nagaoka, T Umehara
1Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, Yamagata 990-8560, Japan.
Abstract:
To study the recognition sites of tRNA for archaeal aminoacyl-tRNA synthetase, several aminoacyl-tRNA synthetase genes from hyperthermophilic archaeon, Aeropyrum pernix K1 were cloned and expressed. All the expressed enzymes showed extreme thermostability. Expressed threonyl-tRNA synthetase threonylated not only archaeal (A. pernix and Haloferax volcanii) threonine tRNAs but also Escherichia coli threonine tRNA. However, threonyl-tRNA synthetase from H. volcanii did not threonylate E. coli threonine tRNA.
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