CPSF6 and viral infectious disease: After statistical analysis, we found that more than 2000 genes showed shortened 3’ UTRs in CPSF6-deficient cells at rest and after viral infection, while the 3’ UTRs of approximately 1500 genes became longer when CPSF6 was ectopically expressed in CPSF6-deficient cells (Figs 3B, S3D and S3E).