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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Conformational activation of the yeast phenylalanyl-tRNA synthetase catalytic site induced by tRNAPhe interaction: triggering of adenosine or CpCpA trinucleoside diphosphate aminoacylation upon binding of tRNAPhe lacking these residues.

Adenosine or CpCpA trinucleoside diphosphate can be aminoacylated by phenylalanyl-tRNA synthetase [L-phenylalanine:tRNAPhe ligase (AMP forming), EC 6.1.1.20] when the reaction takes place in the presence of tRNAPhe deprived of its 3' adenosine or pCpCpA terminus. This shows that, upon interaction with tRNA, a structural alteration of the enzyme's active site is achieved. This process may be a determining step in the specificity of the aminoacylation reaction.[1]

References

  1. Conformational activation of the yeast phenylalanyl-tRNA synthetase catalytic site induced by tRNAPhe interaction: triggering of adenosine or CpCpA trinucleoside diphosphate aminoacylation upon binding of tRNAPhe lacking these residues. Renaud, M., Bacha, H., Remy, P., Ebel, J.P. Proc. Natl. Acad. Sci. U.S.A. (1981) [Pubmed]
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