However, what appeared to be the 17 kDa RIPK3 cleavage product (because it was detected in WT but not Ripk3D333A/D333A BMDMs) was detected after infection with ΔM36 MCMV, ΔM36, M45mutRHIM MCMV, or M45mutRHIM MCMV (compare lanes 3, 4 and 5 with lanes 8, 9, and 10). Here, RIPK3 is linked to infection.