DNA-dependent ATPase activity of UL9 protein. Reactions were performed
as described in Materials and Methods with 1 pmol UL9
protein, 1 pmol ICP8, 3 mM [γ-32P]ATP, and 7.4 pmol
poly(dT), 5.7 pmol Box I, 13 pmol Oris, 11 pmol
OrisT18, 7.7 pmol mutant Oris or
Oris(GC)18.