Figure 2  .

Reactivities of anti-PCNA on immunoblotting using recombinant PCNA proteins (A) and total CHO-K1 cells proteins (B) as antigens. Immunoblots of recombinant PCNA antigens (A) were probed with monoclonal anti-PCNA antibody (lane 2), and sera from patients with HCV infection (lanes 3-7). Immunoblots of total CHO-K1 cells proteins (B) were probed with monoclonal anti-PCNA antibody (lane 1), sera from patients with HBV infection (lanes 2-4), and normal control (lane 5). Sera from patients HBV and HCV infection and monoclonal anti-PCNA antibody reacted with a band of molecular weight of 34 kDa.