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. 2007 Nov 28;408(Pt 3):327–333. doi: 10.1042/BJ20071017

Table 2. Parameters describing the effects of nucleotides on Co2+- and Mn2+-bound mtCBS-PPase.

Co2+/Mg2+-activated enzyme Mn2+/Mg2+-activated enzyme
Enzyme Nucleotide A+L/A−L (%) Kd (μM) A+L/A−L (%) Kd (μM) Source
Wild-type AMP 3.7±0.4 0.22±0.02 20±4 1.4±0.2 Inhibition of activity (Figure 1)
AMP 0.17±0.05 Effect on ATP activation
ADP 0.8±0.3 0.012±0.001 21±2 0.033±0.004 Inhibition of activity (Figure 1)
ADP 0.017±0.005 Effect on ATP activation (Figure 3)
ATP 180±10 0.20±0.05 400±40 7.2±0.8 Inhibition of activity (Figure 1)
ATP 0.16±0.01 Effect on AMP inhibition
ATP 0.6±0.2 Effect on ADP inhibition (Figure 3)
CDP <10 150±20 Inhibition of activity
UDP <10 340±90 Inhibition of activity
Y169A AMP 52±2 5.3±0.9 Inhibition of activity
ADP 6.7±0.4 0.21±0.02 Inhibition of activity
ATP 143±4 2.4±0.9 Inhibition of activity