Tags: Enzyme.
In enzymology a nucleotide diphosphokinase (EC 2.7.6.4) is an enzyme that catalyzes the chemical reactionATP + nucleoside 5′-phosphate AMP + 5′-phosphonucleoside 3′-diphosphateThus the two substrates of this enzyme are ATP and nucleoside 5′-phosphate whereas its two products are AMP and 5′-phosphonucleoside 3′-diphosphate.This enzyme belongs to the family of transferases specifically those transferring two phosphorus-containing groups (diphosphotransferases).