2.1.1.156 K+ dramatic activating effects of sodium and potassium ions on the in vitro methyltransferase activities of MpGSMT 720836 2.1.1.156 KCl increasing KCl concentration from 0.5 M to 1.5 M increases kcat/KM value almost 6fold 758143 2.1.1.156 additional information level of potassium and sodium ions may modulate the substrate binding activity of MpGSMT through the conformational change 720836 2.1.1.156 additional information no requirement for Ca2+, Mg2+, EDTA, Mn2+, Co2+, or Zn2+ 657578 2.1.1.156 Na+ dramatic activating effects of sodium and potassium ions on the in vitro methyltransferase activities of MpGSMT 720836