CD274 and viral infectious disease: No obvious differences in the growth rates of B16/F10scramble or B16/F10PDL1−/− cells could be seen in vitro (Fig 4b and c) and both PDL1+ and PDL1−/− cells were equally sensitive to MYXV infection (Additional file 1: Figure S3) suggesting that editing was not caused by differences in either inherent cell growth or sensitivity to viral infection.