Todd R. Hunter

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p30, the protein required for cell-to-cell movement of tobacco mosaic virus (TMV), has a slightly reduced mobility on SDS-polyacrylamide gels when isolated by immunoprecipitation from TMV-infected protoplasts compared with that of p30 translated from viral RNA in vitro. Further investigation established a probable cause for the difference in mobility(More)
The 2003 budget request for the National Science Foundation, sent to Congress by the President, contained a cut of about 3 percent for the physical sciences, including such disciplines as physics, chemistry, and astronomy. As part of this general trend, the request for NRAO operations was approximately $800,000 below the funding level for 2002. At this(More)
Tobacco mosaic virus mutant Ni 2519 forms local lesions on tobacco cultivars carrying the N gene which, unlike wild-type lesions, do not enlarge at elevated temperature. This may reflect temperature sensitivity of a viral gene product required for cell to cell spreading of infectivity. Ni 2519 also carries an unselected cis-dominant lesion in viral(More)
It has previously been shown that messenger activity for a protein of Mr = ca. 30k exists in RNA fractions extracted from particles of either native or alkali stripped U1 TMV, or from cowpea strain TMV, that are smaller than full genomic length. Analysis of sucrose gradient fractions containing this activity reveals a number of slightly smaller template(More)
An affinity-purified plant lectin from Ricinus communis (RCAII) was shown to exhibit differential toxicity toward SV40-transformed 3T3 fibroblasts grown in vitro. When macromolecular synthesis was examined in SV3T3 and 3T3 cells, RCAII suppressed cell protein synthesis in the transformed line at lower concentrations (1/50 to 1/100) compared to the 3T3 line,(More)