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Merck
CN

P9474

Pyruvate Decarboxylase from baker′s yeast (S. cerevisiae)

ammonium sulfate suspension, 5.0-20.0 units/mg protein (biuret)

Synonym(s):

2-Oxo-acid carboxy-lyase

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About This Item

CAS Number:
EC Number:
UNSPSC Code:
12352204
NACRES:
NA.54
MDL number:
Specific activity:
5.0-20.0 units/mg protein (biuret)
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form

ammonium sulfate suspension

specific activity

5.0-20.0 units/mg protein (biuret)

storage temp.

2-8°C

General description

Pyruvate decarboxylase (PDC) usually appear in plant seeds at the time of germination, especially when the plant embryo is totally covered by an oxygen-impermeable testa.

Application

Pyruvate Decarboxylase from baker′s yeast (S. cerevisiae) has been used to evaluate the power of systematic identification of meaningful metabolic enzyme regulation (SIMMER) for finding unknown yeast regulatory interactions.
Pyruvate decarboxylase (PDC) is used to study residues involved in thiamine pyrophosphate (TPP) binding. It is used to study the regulation of fermentation pathways in plant species.

Biochem/physiol Actions

Pyruvate decarboxylase (PDC) actively participates in the anaerobic metabolism of several bacteria, yeast and plant seeds.
Pyruvate decarboxylase (PDC) is a homotetrameric enzyme that catalyses the decarboxylation of pyruvic acid to acetaldehyde and carbon dioxide in the cytoplasm. Pyruvate decarboxylase depends on cofactors thiamine pyrophosphate (TPP) and magnesium. PDC contains a β-α-β structure, yielding parallel β-sheets.

Physical form

Suspension in 3.2 M (NH4)2SO4 pH 6.5, stabilized with 5% glycerol, 5 mM potassium phosphate, 1 mM magnesium acetate, 0.5 mM EDTA, and 25 μM cocarboxylase.

Preparation Note

Isolated without the use of heavy metals.

Other Notes

One unit will convert 1.0 μmole of pyruvate to acetaldehyde per min at pH 6.0 at 25 °C.


Storage Class

10 - Combustible liquids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable



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