Conformation-Dependent Ligand Regulation of ATP Hydrolysis by Human KSP: Activation of Basal Hydrolysis and Inhibition of Microtubule-Stimulated Hydrolysis by a Single, Small Molecule ModulatorLusong Luo, Robert A. Copeland, Kathleen S. Molnar et al.|Journal of the American Chemical Society|2008Cited by 16