FIGURE 2.

Human rhinovirus protease activity occurs at different times after infection with HRV2 or HRV16. Cell lysates were prepared and subjected to Western analysis as for Figure 1. The specificity of the antibodies is indicated on the right. Where cleavage products are observed, bands corresponding to full length proteins are indicated with arrowheads and cleavage products are indicated with brackets. cp, cleavage products; h.p.i, hours post-infection. Results for densitometric analysis of protein bands are shown below the relevant blots, where data were normalized to the corresponding values for tubulin, and are shown as the percent protein remaining relative to the corresponding values for the 0h sample.