Substitution of conserved cysteine residues in wheat streak mosaic virus HC-Pro abolishes virus transmission by the wheat curl mite.
Arch Virol
; 152(11): 2107-11, 2007.
Article
en En
| MEDLINE
| ID: mdl-17680324
ABSTRACT
Substitutions in the amino-proximal region of wheat streak mosaic virus (WSMV) HC-Pro were evaluated for effects on transmission by the wheat curl mite (Aceria tosichella Keifer). Alanine substitution at cysteine residues 16, 46 and 49 abolished vector transmission. Although alanine substitution at Cys(20) had no effect, substitution with arginine reduced vector transmission efficiency. Random substitutions at other positions (Lys(7) to Asn, Asn(19) to Ile, and Arg(45) to Lys) did not affect vector transmission. These results suggest that a zinc-finger-like motif (His(13)-X2-Cys(16)-X29-Cys(46)-X2-Cys(49)) in WSMV HC-Pro is essential for vector transmission.
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Banco de datos:
MEDLINE
Asunto principal:
Vectores Arácnidos
/
Proteínas Virales
/
Triticum
/
Cisteína Endopeptidasas
/
Potyviridae
/
Ácaros
Límite:
Animals
Idioma:
En
Revista:
Arch Virol
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos