PDCD1LG2 and infection: It should be noted that during the course of the respective antigen presentation experiments (48 hpi), siRNA-mediated silencing of Beclin-1 and Atg7 did not affect expression and/or infection-dependent induction of surface MHC I (H-2Kb and H-2Db), CD80, CD86, PD-L1 or PD-L2.