Enzymatic reactions [BR:br08201]
2. Transferase reactions
2.7 Transferring phosphorus-containing groups
2.7.4 Phosphotransferases with a phosphate group as acceptor
2.7.4.7
R04509 ATP + 4-Amino-2-methyl-5-(phosphooxymethyl)pyrimidine <=> ADP + 4-Amino-5-hydroxymethyl-2-methylpyrimidine diphosphate