FIG. 3.

Structural proteins from two independent preparations of wild-type PrV-Ka were quantitated as described in Materials and Methods. After normalization to the UL19 gene product MCP142, values for all identified proteins were near 1.0, indicating that the purification procedure is reliable. Numbers indicate the relative abundances of the respective proteins in the mass-tagged PrV-Ka preparation compared to the untagged preparation. Error bars indicate the variation of the intensity ratios of the peptides used for the quantitation.