I1643
Pyrophosphatase, Inorganic from baker′s yeast (S. cerevisiae)
powder, ≥500 units/mg protein (E1%/280)
Synonym(s):
Inorganic Pyrophosphatase, Pyrophosphate phosphohydrolase
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About This Item
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form
powder
Quality Level
specific activity
≥500 units/mg protein (E1%/280)
mol wt
71 kDa
storage temp.
−20°C
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General description
Molecular Weight: 71 kDa (homodimer consisting of two equal subunits of molecular weight 32-35 kDa)
Extinction Coefficient: E1% = 14.5 (280 nm)
pI: 4.75
This ubiquitous enzyme serves to drive metabolic reactions that produce pyrophosphate, since these reactions typically have equilibrium constants near unity. The catalytic mechanism has been described in the literature. Inorganic pyrophosphatase is a metalloprotease that requires Mg2+ for maximal activity. Although the hydrolysis of inorganic pyrophosphate is specific in the presence of Mg2+, both ADP and ATP can be hydrolyzed if zinc is present.
Extinction Coefficient: E1% = 14.5 (280 nm)
pI: 4.75
This ubiquitous enzyme serves to drive metabolic reactions that produce pyrophosphate, since these reactions typically have equilibrium constants near unity. The catalytic mechanism has been described in the literature. Inorganic pyrophosphatase is a metalloprotease that requires Mg2+ for maximal activity. Although the hydrolysis of inorganic pyrophosphate is specific in the presence of Mg2+, both ADP and ATP can be hydrolyzed if zinc is present.
Application
Inorganic pyrophosphatase (PPase) is a ubiquitous enzyme catalyzing the reaction PPi + H2O → 2Pi.
It plays an important role in protein, RNA, and DNA synthesis.
It plays an important role in protein, RNA, and DNA synthesis.
Pyrophosphatase has been used:
- as a component of the reaction buffer used in aminoacylation assay to quantify incorporation of [3H]L-methionine into tRNA.
- as a component of PCR mixture.
Pyrophosphatase has been used:
as a component of the reaction buffer used in aminoacylation assay to quantify incorporation of [3H]L-methionine into tRNA.
as a component of PCR mixture
as a component of the reaction buffer used in aminoacylation assay to quantify incorporation of [3H]L-methionine into tRNA.
as a component of PCR mixture
Unit Definition
One unit will liberate 1.0 μmole of inorganic orthophosphate per min at pH 7.2 at 25 °C.
Physical form
Lyophilized powder containing 80-90% buffer salts
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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