pyrophosphatase
Pronunciation: pī′rō-fos′fă-tās
Definition: Any enzyme catalyzing the hydrolysis of a pyrophosphate bond between two phosphoric groups, leaving one on each of the two fragments, inorganic pyrophosphatase, NAD+ p. (cleaves NAD, etc., to mononucleotides), ATP pyrophosphatase (cleaves inorganic pyrophosphate from ATP, leaving AMP).
Synonym(s): diphosphatase
See Also: flavin adenine dinucleotide
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Examples: glitazone, GI cocktail, etc.

