A gene encoding a protein classified as alanyl-tRNA synthetase (AlaRS) was found in the genome of the psychrophilic bacteria Bizionia argentinensis. The enzyme is constituted by three domains with an evolutionarily conserved modular arrangement: the N-terminal aminoacylation domain, the editing domain and the C-terminal domain (C-Ala). Herein we report the near complete NMR resonance assignment of the 122 amino acid C-Ala domain from B. argentinensis. The chemical shift data, reported for the first time for a C-Ala domain, constitute the basis for NMR structural studies aimed at elucidating the cold-adaptation mechanism of AlaRS.

1H, 15N and 13C chemical shift assignments of the C-Ala domain of the alanyl-tRNA synthetase of the psychrophilic bacterium Bizionia argentinensis sp. nov.

ZANZONI, Serena;D'ONOFRIO, Mariapina;MOLINARI, Henriette;ASSFALG, Michael
2014

Abstract

A gene encoding a protein classified as alanyl-tRNA synthetase (AlaRS) was found in the genome of the psychrophilic bacteria Bizionia argentinensis. The enzyme is constituted by three domains with an evolutionarily conserved modular arrangement: the N-terminal aminoacylation domain, the editing domain and the C-terminal domain (C-Ala). Herein we report the near complete NMR resonance assignment of the 122 amino acid C-Ala domain from B. argentinensis. The chemical shift data, reported for the first time for a C-Ala domain, constitute the basis for NMR structural studies aimed at elucidating the cold-adaptation mechanism of AlaRS.
biomolecular NMR; alanyl-tRNA synthetase; psychrophylic bacteria
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/726963
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