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Merck

P5538

Sigma-Aldrich

Phosphoglucose-Isomerase aus Bacillus stearothermophilus

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

Synonym(e):

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

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About This Item

CAS-Nummer:
EC-Nummer:
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352204
NACRES:
NA.54

Form

lyophilized powder

Qualitätsniveau

Spezifische Aktivität

300-1,000 units/mg protein

Mol-Gew.

189 kDa

Zusammensetzung

Protein, ≥60% biuret

Lagertemp.

−20°C

Allgemeine Beschreibung

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.

Anwendung

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. Wirkung

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

Einheitendefinition

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.

Physikalische Form

lyophilized powder containing Tris buffer

Piktogramme

Health hazard

Signalwort

Danger

H-Sätze

Gefahreneinstufungen

Resp. Sens. 1

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


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Die Dokumentenbibliothek aufrufen

A Arias et al.
Journal of bacteriology, 137(1), 409-414 (1979-01-01)
A mutant strain of complex phenotype was selected in Rhizobium meliloti after nitrosoguanidine mutagenesis. It failed to grow on mannitol, sorbitol, fructose, mannose, ribose, arabitol, or xylose, but grew on glucose, maltose, gluconate, L-arabinose, and many other carbohydrates. Assay showed
The Kinetics and Mechanism of a Reaction Catalyzed by Bacillus stearothermophilus Phosphoglucose Isomerase.
Widjaja A, et al.
Journal of Fermentation and Bioengineering, 86(3), 324-331 (1998)
Natsuko Miura et al.
Eukaryotic cell, 11(8), 1075-1082 (2012-07-04)
Glycolytic enzymes are cytosolic proteins, but they also play important extracellular roles in cell-cell communication and infection. We used Saccharomyces cerevisiae to analyze the secretory pathway of some of these enzymes, including enolase, phosphoglucose isomerase, triose phosphate isomerase, and fructose
Sean D Schoville et al.
PloS one, 7(6), e40035-e40035 (2012-07-07)
The marine copepod Tigriopus californicus lives in intertidal rock pools along the Pacific coast, where it exhibits strong, temporally stable population genetic structure. Previous allozyme surveys have found high frequency private alleles among neighboring subpopulations, indicating that there is limited
Baiqing Wang et al.
Journal of molecular evolution, 74(1-2), 96-111 (2012-03-06)
Little is known of intron sequences' variation in cases where eukaryotic gene coding regions undergo strong balancing selection. Phosphoglucose isomerase, PGI, of Colias butterflies offers such a case. Its 11 introns include many point mutations, insertions, and deletions. This variation

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