Journal of General Virology (2005) 86, 225-229
Masamichi Isogai and Nobuyuki Yoshikawa (2005)
Mapping the RNA-binding domain on the Apple chlorotic leaf spot virus movement protein
Journal of General Virology 86 (1), 225-229
Abstract: The RNA-binding properties of the cell-to-cell movement protein (MP) of Apple chlorotic leaf spot virus were analysed. MP was expressed in Escherichia coli and was used in UV-crosslinking analysis, using a digoxigenin-UTP-labelled RNA probe and gel-retardation analysis. The analyses demonstrated that MP bound cooperatively to single-stranded RNA (ssRNA). When analysed for NaCl dependence of the RNA-binding activity, the majority of the MP could bind ssRNA even in binding buffer with 1 M NaCl. Furthermore, competition binding experiments showed that the MP bound preferentially to ssRNA and single-stranded DNA without sequence specificity. MP deletion mutants were used to identify the RNA-binding domain by UV-crosslinking analysis. Amino acid residues 82-126 and 127-287 potentially contain two independently active, single-stranded nucleic acid-binding domains.
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Database assignments for author(s): Masamichi Isogai, Nobuyuki Yoshikawa
Research topic(s) for pests/diseases/weeds:
molecular biology - genes
Pest and/or beneficial records:
Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
---|---|---|---|---|
Apple chlorotic leaf spot virus |