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Merck

I1643

Pyrophosphatase, Inorganic from baker′s yeast (S. cerevisiae)

powder, ≥500 units/mg protein (E1%/280)

Sinónimos:

Inorganic Pyrophosphatase, Pyrophosphate phosphohydrolase

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Número CAS:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-784-7
MDL number:
Número CE:
Specific activity:
≥500 units/mg protein (E1%/280)
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form

powder

Quality Segment

specific activity

≥500 units/mg protein (E1%/280)

mol wt

71 kDa

storage temp.

−20°C

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.

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.
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

Physical form

Lyophilized powder containing 80-90% buffer salts

Other Notes

One unit will liberate 1.0 μmole of inorganic orthophosphate per min at pH 7.2 at 25 °C.


Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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