FIG. 7.

Coimmunoprecipitation of EBP2 with EBNA1 mutants. (A) Lysates from insect cells expressing EBNA1 proteins alone (−) or EBNA1 proteins with EBP2 (+) were prepared 2 days postinfection and immunoprecipitated with anti-EBNA1 antibody as in Fig. 6. Immunoprecipitated proteins are shown. (B) Insect cell lysates coexpressing EBNA1 proteins and EBP2 (1/140 the amount used in panel A) were analyzed by Western blotting with EBNA1 antisera. The position of the band corresponding to the full-length EBNA1 protein in question is marked by the bracket.