Thermostable pyrophosphatase is a recombinant enzyme from Sulfolobus acidocaldarius which catalyzes the Mg-dependent reaction of P2O7-4 + H2O → 2HPO4-2. It is has a low Km (5.4 uM) for pyrophosphate, is active between pH 7 and 9, has an optimal temperature for activity at 75°C and is functional under PCR conditions.
Source of Protein A recombinant E. coli strain carrying the Thermostable Pyrophosphatase gene from S. acidocaldarius.
Unit DefinitionOne unit is the amount of enzyme that will liberate 1 µmol of phosphate per minute from inorganic pyrophosphate at 75°C and pH 8.5
Molecular Weight19,381 Daltons
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