OCA2 and infection: The efficiency of virus replication after an overnight infection with VSV at MOI = 1 (Fig. 2A, C) or after 4 h at MOI = 5 (Fig. 2 B, D) was evaluated by plaque assay (Fig, 2A), by Northern (Fig. 2B), by Western blotting of 5 μg of total protein with anti-P-protein antibodies (Fig. 2 C), and by immunoprecipitation of S35-labeled P-protein (Fig. 2 D).