Wild-type (WT) and ISG15 knockout (KO) HeLa cell extracts (30 μg) were separated by 15% SDS-PAGE, and the membrane was blotted with ISG15 antibody [HL2016] (GTX637917) diluted at 1:1000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.

Untreated (–) and treated (+) A549 whole cell extracts (30 μg) were separated by 15% SDS-PAGE, and the membrane was blotted with ISG15 antibody [HL2016] (GTX637917) diluted at 1:1000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.