. "Catalysis of the reaction: 2'-deoxyadenosine + ATP = ADP + dAMP + 2 H(+)." . . "deoxyadenosine kinase activity" . "ATP:deoxyadenosine 5'-phosphotransferase activity" . "deoxyadenosine kinase (phosphorylating)" . "purine-deoxyribonucleoside kinase activity" . . .