Enhancement of the human Mus81·Eme1 nuclease function by human
Rad54. A, the 3′ DNA flap substrate (6 nm) was
incubated with human Mus81·Eme1 (0.13 nm) and without or
with human Rad54 (hRad54) (0.5, 1, 2, 4, 8, or 16 nm) at
37 °C for 30 min and then analyzed. B, quantification of the data
shown in panel A. C, human Rad54 enhances the nuclease activity of
Mus81·Mms4. The 3′ DNA flap (6 nm) was incubated with
Mus81·Mms4 (0.25 nm) and the indicated amounts of human
Rad54 (4, 8, or 16 nm) or yeast Rad54 (yRad54, 2 or 4
nm) at 37 °C for 30 min and then analyzed. D,
quantification of the data shown in C.