Yang et al. 10.1073/pnas.0402625101.
Fig. 6. Steady-state fluorescence experiment to determine the Kd between gp43 or D408N gp43 and gp45. Fluorescent donors (tryptophan) in either gp43 or D408N gp43 were excited at 290 nm, and the energy transfer to a coumarin maleimide (cpm) acceptor attached to gp45(S158C/W199F/W92F) was observed. The tryptophan donor quenching of D408N gp43 (square, solid line) or gp43 (circle, dashed line) by gp45(S158C/W199F/W92F)-cpm were used to obtain Kd values of 148 nM for gp43 and 145 nM for D408N gp43.
Fig. 7. Effect of [gp43] on the Okazaki fragment size synthesized on the minicircle substrate. Standard replication reactions were carried out at various gp43 concentrations in the presence of [a -32P]dCTP to monitor the lagging strand synthesis. The average sizes of the Okazaki fragments synthesized at 240, 120, 60, 30, and 15 nM of gp43 were 1.1, 1.1, 1.0, 0.9, and 1.1 kb (lanes 1–5), respectively.