(Deoxy)adenylate kinase () is an enzyme that catalyzes the chemical reaction

The enzyme characterised from L cells converts the nucleotide, deoxyadenosine monophosphate, to deoxyadenosine diphosphate by transferring a phosphate group from the cofactor, adenosine triphosphate (ATP), which is converted to adenosine diphosphate (ADP).

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a phosphate group as acceptor. The systematic name of this enzyme class is ATP:(d)AMP phosphotransferase.

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