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Key Documents

G1881

Sigma-Aldrich

α-Glycerophosphate Dehydrogenase-Triosephosphate Isomerase from rabbit muscle

Type III, ammonium sulfate suspension

Synonyme(s) :

GDH/TIM, α-GDH-TPI

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About This Item

Numéro de classification (Commission des enzymes):
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Source biologique

rabbit muscle

Type

Type III

Forme

ammonium sulfate suspension

GDH activity

75-200 units/mg protein (biuret)

TPI activity

750-2000 units/mg protein

Température de stockage

2-8°C

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Catégories apparentées

Description générale

Research area: Neuroscience

α-Glycerophosphate Dehydrogenase-Triosephosphate isomerase (α-GDH-TPI or GDH/TIM) is an enzyme mixture of α-glycerophosphate dehydrogenase (GDH) and triosephosphate isomerase (TPI).

Application

α-Glycerophosphate Dehydrogenase-Triosephosphate Isomerase from rabbit muscle has been used in spectrophotometric aldolase assay and fructose 2,6 bisphosphate assay. It has also been used in erythrocyte transketolase (ETK) activity to study the prevalence of and factors associated with thiamin deficiency in obese.
α-glycerophosphate dehydrogenase was used in 2-deoxy-ribose 5-phosphate aldolase (DERA) cleavage (retroaldol) assay.

Actions biochimiques/physiologiques

α-Glycerophosphate dehydrogenase (α-GPDH) has the ability to produce reactive oxygen species (ROS), that is induced by Ca2+.
α-glycerophosphate dehydrogenase catalyzes the conversion of dihydroxyacetone to glycerol phosphate. α-Glycerophosphate dehydrogenase (α-GPDH) has the ability to produce reactive oxygen species (ROS), that is induced by Ca2+. Triosephosphate isomerase (TPI) is an essential enzyme in the glycolytic pathway, responsible for converting dihydroxyacetone phosphate (DHAP) into glyceraldehyde-3 phosphate (GAP). TPI′s role is crucial in enhancing the efficiency of the catabolic process within glycolysis. However, a deficiency in TPI can lead to glycolytic enzymopathies, rare genetic disorders characterized by neurologic dysfunction and hemolytic anemia.

Conditionnement

(Sold on the basis of α-GDH units.)

Définition de l'unité

(α-GDH) One unit will convert 1.0 μmole of dihydroxyacetone phosphate to α-glycerophosphate per min at pH 7.4 at 25 °C.
(TPI) One unit will convert 1.0 μmole of D-glyceraldehyde 3-phosphate to dihydroxyacetone phosphate per min at pH 7.6 at 25 °C.

Forme physique

Mixed crystalline suspension in 3.2 M (NH4)2SO4, with 0.05 g/L EDTA, pH 6.0

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Identification of an anaerobically induced phosphoenolpyruvate-dependent fructose-specific phosphotransferase system and evidence for the Embden-Meyerhof glycolytic pathway in the heterofermentative bacterium Lactobacillus brevis.
Saier M H, et al.
Journal of Bacteriology, 178(1) (1996)
C R Hussey et al.
European journal of biochemistry, 80(2), 497-506 (1977-11-01)
A preparation of phosphofructokinase from rabbit skeletal muscle is described which exploits the association-dissociation properties of the enzyme. Phosphofructokinase to prepared is partially phosphorylated and may be fractioned into three distinct species with sedimentation coefficients of 30 S, 18 S
Structural and Genetic Studies Demonstrate Neurologic Dysfunction in Triosephosphate Isomerase Deficiency Is Associated with Impaired Synaptic Vesicle Dynamics
Roland BP, et al.
PLoS Genetics, 12(3) (2016)
The role of mitochondrial dehydrogenases in the generation of oxidative stress
Adam-Vizi V and Tretter L
Neurochemistry International, 62(5), 757-763 (2013)
D Roberts et al.
The Biochemical journal, 183(2), 349-360 (1979-11-01)
1. The fluorescent ATP analogue 1,N6-etheno-ATP is a good substrate and an efficient allosteric inhibitor of rabbit skeletal-muscle phosphofructokinase. 2. Fluorescence energy transfer occurs between bound 1,N6-etheno-ATP and phosphofructokinase. 1,N6-Etheno-ATP fluorescence is enhanced, intrinsic protein fluorescence is quenched, and the

Articles

Instructions for working with enzymes supplied as ammonium sulfate suspensions

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