Figure 1.
Reconstitution of apo-NagA (0.5 μM) with varying amounts of ZnCl2. The rate of substrate hydrolysis was determined after diluting the enzyme to a concentration of 30 nM in 1.0 mM N-acetyl-d-glucosamine-6-phosphate, 1.0 μM EDTA and 25 mM Tris at pH 7.5 and 30 °C.