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Multichannel reaction mechanism in tertiary stabilized hammerhead ribozyme in cobalt hexammine and hexahydrated magnesium. Two Mg2+ ions have been shown in accordance with the determination of the Hill coefficient for this ribozyme (Roychowdhury-Saha and Burke 2006). Two CoHex ions are shown as an extrapolation based on the precedent of the Mg(H2O)n 2+ ions.
