FIG. 7.

Protein composition of purified fMHV. ³⁵S-labeled fMHV and, for comparison, similarly labeled FIPV and MHV were prepared and purified by floatation in sucrose gradients. Virus particles were subsequently affinity purified with specific antibodies and analyzed in an SDS–12.5% polyacrylamide gel. Indications are as described in the legend to Fig. 6.