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© Structural Dynamics Of Macromolecules
The structure of a bacterial analog of the nicotinic receptor (one color per subunit) inserted into the cell membrane (grey and orange). A representation of the volume accessible to ions is shown in yellow.
Publication : Nucleic Acids and Molecular Biology

Aminoacyl-tRNA Synthetases: Partition into two Classes

Team: Architecture and Dynamics of Biological Macromolecules
Member: Marc Delarue
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Nucleic Acids and Molecular Biology - 02 Jan 1992

M. Delarue, D. Moras

Nucleic Acids and Molecular Biology vol 6 pp 203-224

Aminoacyl-tRNA synthetases (aaRS) constitute a family of enzymes that catalyze the specific attachment of one amino acid (aa) to its cognate tRNA in what is a key step in the translation of the genetic information during protein biosynthesis. This enzymatic reaction requires ATP and can be decomposed in two steps:

aa+𝐴𝑇𝑃→𝑎𝑎−𝐴𝑀𝑃+𝑃𝑃𝑖aa−𝐴𝑀𝑃+𝑡𝑅𝑁𝐴→𝑎𝑎−𝑡𝑅𝑁𝐴+𝐴𝑀𝑃Springer_MD_ok