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. 2000 Jan 4;97(1):97–102. doi: 10.1073/pnas.97.1.97

Table 1.

Enzymatic activities of His-tag-purified enzymes

Enzyme Specific activity, μmol/hr per mg
Ratio
CPSase ATCase DHOase
CAD-wt 1.4  ±  0.01 86.4  ±  4.8 47.4  ±  1.8 1:60:32
CAD-D90A 1.3  ±  0.03 12.5  ±  0.1 31.7  ±  1.4 1:10:25
CAD-R269A 1.2  ±  0.02 2.6  ±  0.4 29.4  ±  0.9 1:2:25