Fig. 2From: Human POLD1 modulates cell cycle progression and DNA damage repairEffects of altered POLD1 expression on the growth of HEK293 cells. HEK293 cells were transfected with the indicated vectors, and cell proliferation was determined by CCK-8 assay 24, 48, and 72 h later. Data shown were the mean ± SD of the ratio for the absorbance at 450 nm. n = 3, *P < 0.01 vs. shControlBack to article page