title: Studies on the assembly of a spherical plant virus. I. States of aggregation of the isolated protein.
mesh_terms: D002118:Calcium; D011232:Chemical Precipitation; D002852:Chromatography, Ion Exchange; D003460:Crystallization; D003956:Dialysis; D006863:Hydrogen-Ion Concentration; D008854:Microscopy, Electron; D010942:Plant Viruses; D011485:Protein Binding; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D014461:Ultracentrifugation; D014764:Viral Proteins / Q000302:isolation & purification
chemical_list: D014764:Viral Proteins; D002118:Calcium