FIG. 4.
Digitally scanned image of an immunoblot showing the detection of the UL28/UL15/UL33 protein complex from baculovirus-infected Sf21 cells. Cell lysates were immunoprecipitated as described in Materials and Methods with antibody directed against the UL28 (α28), UL15 (α15), or UL33 (α33) proteins or preimmune serum (αpi). The position of the UL28 protein is indicated with an arrow. The heavy chain of the antibody can be seen as a dark band at approximately 50,000 (arrowhead). Molecular weight standards are marked at the right in thousands.