Furthermore , the metal ion Mn was shown to have a similar , but stronger effect on the coupling free energy of YPK than Mg .
Therefore , Mg was isolated as an important component in the successful catalysis of PEP into pyruvate by pyruvate kinase .
The metal ion Mn was shown to have a similar , but stronger effect on the coupling free energy of YPK than Mg .
Therefore , Mg was isolated as an important component in the successful catalysis of PEP into pyruvate by pyruvate kinase .