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FEBS Lett. 1992 Dec 21;314(3):256-8. doi: 10.1016/0014-5793(92)81483-3.

Anticodon-dependent aminoacylation of RNA minisubstrate by lysyl-tRNA synthetase.

FEBS letters

A M Khvorova, Motorin YuA, A D Wolfson, K L Gladilin

Affiliations

  1. A.N. Bakh Institute of Biochemistry, Russian Academy of Sciences, Moscow.

PMID: 1281788 DOI: 10.1016/0014-5793(92)81483-3
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Abstract

Specific inhibition of mammalian lysyl-tRNA synthetase by polyU is shown. Inhibition of the enzyme is dependent on the length of the oligonucleotide, since oligoU molecules with a length of less than 8 residues do not inhibit the aminoacylation, whilst the effect of oligoU molecules with a length of about 30 residues is the same as that of polyU. Inhibition is a result of recognition by the enzyme of the tRNALys anticodon sequence (UUU) coded by polyU. Aminoacylation of the oligoU molecule with attached CCA sequence (G(U)20-CCA) by yeast and mammalian lysyl-tRNA synthetases is demonstrated.

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