Figure 1. The protein abundance of PD-L1 fluctuates during cell cycle progression.
a, c, Immunoblot (IB) analysis of whole cell lysates (WCL) derived from HeLa cells synchronized in M phase by nocodazole (a) or in late G1/S phase by double thymidine (b) following by releasing back into the cell cycle.
b, d, The cell-cycle profiles in (a) or (c) were monitored by fluorescence-activated cell sorting (FACS).