Adenylate cyclase, which synthesizes cyclic AMP from ATP, requires two metal ions, and the enzyme has the

Question:

Adenylate cyclase, which synthesizes cyclic AMP from ATP, requires two metal ions, and the enzyme has the same constellation of amino acid residues in the active site as does DNA polymerase I. In what sense is the adenylate cyclase reaction similar to that of DNA polymerase, and in what sense is it diﬀerent?