Subassembly aggregates of papaya mosaic virus protein.
An examination of the number of subunits in small aggregates of papaya mosaic virus (PMV) coat protein is presented based on a model system which gives results consistent with the experimental observation that the 14 S subassembly species is a double disc, composed of two rows of nine subunits each. The estimated hydration of the disc, about 0.85 g 1H20/9 protein, is unusually large and indicates a cavitated structure for the disc. Comparison with other rod-shaped viruses suggests that the flexuous nature of PMV is a consequence of sparse axial inter-subunit contacts at high radius.
Erickson
J W
JW
Department of Plant Sciences, University of Western Ontario, London, Ontario, USA.
Hallett
F R
FR
Bancroft
J B
JB