Analysis of differential selective forces acting on the coat protein (P3) of the plant virus family Luteoviridae.
Genet Mol Res
; 4(4): 790-802, 2005 Dec 30.
Article
em En
| MEDLINE
| ID: mdl-16475127
The coat protein (CP) of the family Luteoviridae is directly associated with the success of infection. It participates in various steps of the virus life cycle, such as virion assembly, stability, systemic infection, and transmission. Despite its importance, extensive studies on the molecular evolution of this protein are lacking. In the present study, we investigate the action of differential selective forces on the CP coding region using maximum likelihood methods. We found that the protein is subjected to heterogeneous selective pressures and some sites may be evolving near neutrality. Based on the proposed 3-D model of the CP S-domain, we showed that nearly neutral sites are predominantly located in the region of the protein that faces the interior of the capsid, in close contact with the viral RNA, while highly conserved sites are mainly part of beta-strands, in the protein's major framework.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Genoma Viral
/
Luteovirus
/
Imageamento Tridimensional
/
Proteínas do Capsídeo
/
Modelos Genéticos
Idioma:
En
Revista:
Genet Mol Res
Assunto da revista:
BIOLOGIA MOLECULAR
/
GENETICA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil