Steady-state reversible inhibition of DHBV DNA synthesis by
PPi. The effect of 0, 50, 100, and 250 μM PPi
on DHBV-RT DNA synthesis was determined under varying dNTP
concentrations. After 60 min at 37°C, the reactions were terminated,
and the reciprocal of the reaction velocity was plotted versus the
reciprocal of substrate concentration (Lineweaver-Burk plot).