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EC Number
Metals/Ions
Commentary
Reference
3.4.11.B4
Ca2+
contains 1.32 mol of Ca2+ per mol of monomer
718729
3.4.11.B4
Ca2+
the enzyme is chelated with one calcium ion per monomer of the protein. Removal of Ca2+ by dialysis for 12 h in 50 mM EDTA does not effect the enzyme activity, suggesting that calcium has no effect on the activity. Replacement of calcium with zinc also shows no effect on the activity
719480
3.4.11.B4
Co2+
activates
719112
3.4.11.B4
Co2+
activity is dependent on Co2+. 6fold increase in activity in presence of 0.5 mM Co2+
719480
3.4.11.B4
Co2+
wild-type enzyme is strongly activated by Co2+. Activity of mutant enzymes D173N, E205Q, and E206Q is slightly increased by Co2+. Asp173, Glu205, and Glu206 participate in the catalytic activity through binding with the Co2+
718729
3.4.11.B4
Zn2+
activates
719112
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