No Evidence for Tissue-Specific Adaptation of Synonymous Codon Usage in Humans

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No evidence for tissue-specific adaptation of synonymous codon usage in humans.

It has been proposed that the synonymous codon usage of human tissue-specific genes was under selective pressure to modulate the expression of proteins by codon-mediated translational control (Plotkin, J. B., H. Robins, and A. J. Levine. 2004. Tissue-specific codon usage and the expression of human genes. Proc. Natl. Acad. Sci. USA 101:12588-12591.) To test this model, we analyzed by internal c...

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In most bacteria, synonymous codons are not used with equal frequencies. Different factors have been proposed to contribute to codon usage preference, including translational selection, GC composition, strand-specific mutational bias, amino acid conservation, protein hydropathy, transcriptional selection and even RNA stability. The review discusses these factors and their contribution to bias i...

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Evolution of synonymous codon usage in metazoans.

The vast amount of data generated by genome projects and the recent development of population genetics models make comparative sequence analyses a very powerful approach with which to detect the footprints of selection. Studies on synonymous codon usage show that traits with minuscule phenotypic effects can be molded by natural selection. But variations in mutation patterns and processes of bia...

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The codon Adaptation Index--a measure of directional synonymous codon usage bias, and its potential applications.

A simple, effective measure of synonymous codon usage bias, the Codon Adaptation Index, is detailed. The index uses a reference set of highly expressed genes from a species to assess the relative merits of each codon, and a score for a gene is calculated from the frequency of use of all codons in that gene. The index assesses the extent to which selection has been effective in moulding the patt...

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Background: Little knowledge of synonymous codon usage pattern of pseudorabies virus (PRV) genome, especially the UL31 gene in the process for its evolution is available. Objectives: In the present study, the codon usage bias between PRV UL31 sequence and the UL31-like sequences was identified. Materials and Methods: We used a comprehensive analysi...

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ژورنال

عنوان ژورنال: Molecular Biology and Evolution

سال: 2005

ISSN: 1537-1719,0737-4038

DOI: 10.1093/molbev/msj053