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P5538 Sigma

Phosphoglucose Isomerase from Bacillus stearothermophilus

lyophilized powder, 300-1,000 units/mg protein

Synonym: D-Glucose-6-phosphate ketol-isomerase, PGI, Phosphosaccharomutase

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Description

Unit Definition

One unit will convert 1.0 μmole of D-fructose 6-phosphate to D-glucose 6-phosphate per min at pH 9.0 at 30 °C.

Physical form

lyophilized powder containing Tris buffer

Application

Phosphoglucose Isomerase (PGI) is an enzyme crucial for the interconversion of D-glucose 6-phosphate and D-fructose 6-phosphate. PGI is responsible for the second step of glycolysis and is involved in glucogenesis. It is highly conserved in bacteria and eukaryotes. It is used in sugar assays to convert fructose to glucose. This product is from Bacillus stearothermophilus.

The enzyme from Sigma has been used in the determination of fructose 6-phosphate in a mutant strain of Rhizobium meliloti.

Biochem/physiol Actions

Phosphoglucose Isomerase fuctions as an isomerase, neuroleukin, autocrine motility factor, and a differentiation and maturation mediator.

General description

The enzyme is part of the glycolytic pathway. Also, it is important in the industrial production of fructose 1,6-diphosphate (FDP) from glucose. The molecular mass is found to be approximately 189 kDa and it consists of four subunits, each with a molecular mass of approximately 50 kDa. Optimum pH is found to be between 9-10 and the isoelectric point is 4.2.

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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles

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Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers
15

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