CPSF6 and infection: At nonlimiting CPSF6 levels, the capsid passage through NPCs was comparably efficient, considering that oocytes were loaded with far more capsids (~10,000) than during a genuine infection and images were acquired already 30 min after injection, which is fast for a transport experiment in oocytes, where diffusion distances and, thus, diffusion times far exceed those in somatic cells.