Carbon-13 and proton nuclear magnetic resonance spectroscopy of plant viruses: evidence for protein-nucleic acid interactions in belladonna mottle virus and detection of polyamines in turnip yellow mosaic virus
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Belladonna mottle virus (BDMV) enriched in carbon-13 was isolated from infected tobacco plants grown in a 2% 13C02, 8% 12CO2 atmosphere. The enrichment led to a fivefold improvement in the signal to noise ratio of the (13)C NMR spectrum of BDMV. 1H and 13C NMR... ...
