Table 1.

Biophysical data for BMV_P and yeast-derived 65S VLPs

Particle	s20,w, S	Mr (×106)*	Mr (×106)†	% RNA‡
BMV (ref. 16)	88	4.6	NA	21.4
BMVP (this work)	88	4.3  ±  0.2	4.5	20.0  ±  1.2
65S VLP	65	2.7  ±  0.2	2.7	9.5  ±  1.4

^*Determined by analytical ultracentrifugation. 

^† Determined by scanning transmission electron microscopy. Data generously provided by M. Simon at Brookhaven National Laboratory (29). 

^‡ Determined from sucrose gradient-purified particles. Protein content was measured using the Hartree–Lowry or bicinchoninic acid (Pierce) assay. Extracted RNA content was measured by optical absorbance at 260 nm.