期刊
ACTA TROPICA
卷 176, 期 -, 页码 29-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.actatropica.2017.07.025
关键词
Codon usage; Malaria; Compositional bias; Translational selection; Phylogeny
Codon usage bias is due to the non-random usage of synonymous codons for coding amino acids. The synonymous sites are under weak selection, and codon usage bias is maintained by the equilibrium in mutational bias, genetic drift and selection pressure. The differential codon usage choices are also relevant to human infecting Plasmodium species. Recently, P. blowiest switches its natural host, long-tailed macaques, and starts infecting humans. This review focuses on the comparative analysis of codon usage choices among human infecting P. falciparurn and P. vivax along with P. blowiest species taking their coding sequence data. The variation in GC content, amino acid frequencies, effective number of codons and other factors plays a crucial role in determining synonymous codon choices. Within species codon choices are more similar for P. vivax and P. knowlesi in comparison with P. falc4xtrum species. This study suggests that synonymous codon choice modulates the gene expression level, mRNA stability, ribosome speed, protein folding, translation efficiency and its accuracy in Plasmodium species, and provides a valuable information regarding the codon usage pattern to facilitate gene cloning as well as expression and transfection studies for malaria causing species.
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