Computational studies on the cognate and non-cognate aminoacyl-tRNAs
Document Type
Article
Publication Date
1-1-2011
Abstract
Although kinetic proofreading plays a major role in the fidelity of protein synthesis, it only includes the codon-anticodon interaction without considering the amino acid side chain. It is not known whether the ribosome has a specific interaction with the amino acid side chain or if the correctly charged tRNA behaves in such a way that brings this fidelity to protein synthesis process. To answer this question, we performed some preliminary calculations using numerical analysis on the misacylated tRNAs and compared the results with that of the cognate aminoacyl-tRNAs. Due to the large size of the molecule, we used 2-layered ONIOM (QM/MM) calculations. Interestingly, it was observed that only the initiator tRNA, mat has a specific interaction with the amino acid side chain.
Keywords
Aminoacyl-tRNA, Protein synthesis, Ribosome
Divisions
CHEMISTRY
Publication Title
Malaysian Journal of Science
Volume
30
Issue
2
Publisher
Faculty of Science, University of Malaya
Additional Information
Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA