Purification and Properties of Catechol 1,2-Dioxygenase from Rhizobium leguminosarum biovar viceae USDA 2370.
The catechol 1,2-dioxygenase of Rhizobium leguminosarum biovar viceae USDA 2370 was purified 296-fold, yielding a homogeneous preparation with a specific activity of 51.1 U mg of protein. The molecular weight of the native protein was 70,000, with two identical subunits of 34,500 and 1 g-atom of iron per mol. The optimum pH for catalytic activity was 9.0 to 9.5.
Chen
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Department of Biological Sciences, University of South Carolina, Columbia, South Carolina 29208.
Lovell
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