adenosine kinase ( atp : adenosine 5'-phosphotransferase , ec 2.7.1.20 ) , the first to elute from the column is responsible for the majority of the deoxyadenosine phosphorylation in cell extracts and , according to resistance data , appears to phosphorylate most adenosine analogs tested , including 9-beta-d-arabinosyladenine ( ara-a ) .
C0001443
adenosine
C0042646
ara-a