Structures of new crystal forms of Mycobacterium tuberculosis peptidyl-tRNA hydrolase and functionally important plasticity of the molecule

Selvaraj, M and Ahmad, Rais and Varshney, Umesh and Vijayan, M (2012) Structures of new crystal forms of Mycobacterium tuberculosis peptidyl-tRNA hydrolase and functionally important plasticity of the molecule. In: Acta Crystallographica Section F, 68 (Part 2). pp. 124-128.

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Abstract

The X-ray structures of new crystal forms of peptidyl-tRNA hydrolase from M.similar to tuberculosis reported here and the results of previous X-ray studies of the enzyme from different sources provide a picture of the functionally relevant plasticity of the protein molecule. The new X-ray results confirm the connection deduced previously between the closure of the lid at the peptide-binding site and the opening of the gate that separates the peptide-binding and tRNA-binding sites. The plasticity of the molecule indicated by X-ray structures is in general agreement with that deduced from the available solution NMR results. The correlation between the lid and the gate movements is not, however, observed in the NMR structure.

Item Type:	Journal Article
Publication:	Acta Crystallographica Section F
Publisher:	John Wiley and Sons
Keywords:	enzyme action; peptidyl-tRNA binding site; protein synthesis; molecular plasticity; crystal and solution structures
Department/Centre:	Division of Biological Sciences > Molecular Biophysics Unit
Date Deposited:	02 Mar 2012 11:03
Last Modified:	02 Mar 2012 11:03
URI:	http://eprints.iisc.ac.in/id/eprint/43703

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