Fig. 5From: Role of magnesium ions in the reaction mechanism at the interface between Tm1631 protein and its DNA ligandEnergy profile (red) for QM/MM calculation in vacuum without Mg2+ ions with the values for the energy denoted on the y1 axis. Values for distances between atoms Cyt6 03′—P (3DR7) (green) and water 1863 OH2-P (3DR7) (blue) are marked on the y2 axis Back to article page