The codon usage model of the context flanking each cleavage site in the polyprotein of foot-and-mouth disease virus
文献类型: 外文期刊
第一作者: Zhou, Jian-hua
作者: Zhou, Jian-hua;Zhang, Jie;Chen, Hao-tai;Ma, Li-na;Ding, Yao-zhong;Liu, Yong-sheng;Pejsak, Zygmunt
作者机构:
关键词: Foot-and-mouth disease virus;Cleavage site;Codon usage pattern;The hosts
期刊名称:INFECTION GENETICS AND EVOLUTION ( 影响因子:3.342; 五年影响因子:3.188 )
ISSN: 1567-1348
年卷期: 2011 年 11 卷 7 期
页码:
收录情况: SCI
摘要: To investigate the codon usage pattern of the contexts flanking 11 cleavage sites of foot-and-mouth disease virus (FMDV) polyprotein, the codon usage model of the corresponding codon position and the synonymous codon usage in the target contexts of 66 strains were characterized by two simple methods based on the relative synonymous codon usage value. The synonymous codons usage pattern was also compared between this virus and two species of hosts (cattle and domestic pig). It is indicated that FMDV bore a general resemblance to the hosts in terms of the synonymous codon usage pattern. This feature may help FMDV to utilize translational resources of host efficiently. The two amino acid residues constituting each cleavage site contain at least one conserved residue. It was noticed that the codon usage model with the strong bias appeared in some specific positions in the target contexts, and the under-represented synonymous codons, AUA for Ile, CUA for Leu, UUA for Leu and GUA for Val, are preferentially used in these positions. These under-represented synonymous codons likely play role in regulating the translation rate and influencing the secondary structure of the contexts flanking the cleavage sites. (C) 2011 Elsevier B.V. All rights reserved.
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