ID 2.7.7.96 DE ADP-D-ribose pyrophosphorylase. AN Diphosphate adenylyltransferase. AN Diphosphate--ADP-D-ribose adenylyltransferase. AN NUDIX5. CA ATP + D-ribose 5-phosphate = diphosphate + ADP-D-ribose. CC -!- The human enzyme produces ATP in nuclei in situations of high energy CC demand, such as chromatin remodeling. CC -!- The reaction is dependent on the presence of diphosphate. CC -!- In its absence the enzyme catalyzes the reaction of EC 3.6.1.13. CC -!- Cf. EC 2.7.7.35. DR Q9UKK9, NUDT5_HUMAN; Q9JKX6, NUDT5_MOUSE; Q5RCY2, NUDT5_PONAB; DR Q6AY63, NUDT5_RAT ; //