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G2501

Sigma-Aldrich

L-Glutamic Dehydrogenase from bovine liver

Type I, ammonium sulfate suspension, ≥40 units/mg protein

Synonyme(s) :

L-GLDH, L-Glutamate:NAD[P]+ Oxidoreductase (deaminating), Glutamate Dehydrogenase from bovine liver

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About This Item

Numéro CAS:
9029-12-3
Numéro de classification (Commission des enzymes):
1.4.1.3 (BRENDA, IUBMB)
Numéro CE :
232-848-4
Numéro MDL:
MFCD00131461
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Type

Type I

Niveau de qualité

200

Forme

ammonium sulfate suspension

Activité spécifique

≥40 units/mg protein

Poids mol.

310-350 kDa

Numéro d'accès UniProt

P00366

Température de stockage

2-8°C

Informations sur le gène

cow ... GLUD1(281785)

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Actions biochimiques/physiologiques

L-glutamic dehydrogenase catalyzes the conversion of glutamate to α-ketoglutarate.
Mammalian forms of this enzyme, including this bovine form, can use either NADP(H) or NAD(H) as coenzymes. L-glutamic dehydrogenase plays a unique role in mammalian metabolism. The reverse reaction catalyzed by this enzyme is the only pathway by which ammonia can become bound to the α-carbon atom of an α-carboxylic acid and thus, is the only source of de novo amino acid synthesis in mammalian species.

The bovine enzyme is characterized by three sets of properties:
  • It has a reversible concentration-dependent association, producing higher molecular weight forms.
  • Forms tight enzyme-reduced coenzyme-substrate ternary complexes whose rates of dissociation modulate the steady-state reaction rates.
  • Exhibits a wide variety of effects from the binding of any of a number of nucleotide modifiers.

L-glutamic dehydrogenase catalyzes the conversion of glutamate to α-ketoglutarate.

Définition de l'unité

One unit will reduce 1.0 μmole of α-ketoglutarate to L-glutamate per min at pH 7.3 at 25 °C, in the presence of ammonium ions.

Forme physique

Suspension in 2.0 M (NH4)2SO4 solution

Remarque sur l'analyse

Protein determined by biuret

Substrat

Réf. du produit
Description
Tarif

Pictogrammes

Health hazard
GHS08

Mention d'avertissement

Danger

Mentions de danger

H334

Conseils de prudence

P261 - P284 - P501

Classification des risques

Resp. Sens. 1

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

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Hyperinsulinism and hyperammonaemia syndrome and severe myoclonic epilepsy of infancy.
F Pérez Errazquin et al.
Neurologia (Barcelona, Spain), 26(4), 248-252 (2010-12-18)
Mehran Karimi et al.
Seminars in thrombosis and hemostasis, 35(4), 426-438 (2009-07-15)
Factor XIII (FXIII) is a tetrameric zymogen (FXIII-A (2)B (2)) that is converted into an active transglutaminase (FXIIIa) by thrombin and Ca (2+) in the terminal phase of the clotting cascade. By cross-linking fibrin chains and alpha (2) plasmin inhibitor
Ioannis Zaganas et al.
Neurochemistry international, 55(1-3), 52-63 (2009-05-12)
In all mammals, glutamate dehydrogenase (GDH), an enzyme central to the metabolism of glutamate, is encoded by a single gene (GLUD1 in humans) which is expressed widely (housekeeping). Humans and other primates also possess a second gene, GLUD2, which encodes
Konstantinos Kanavouras et al.
Journal of neurochemistry, 109 Suppl 1, 167-173 (2009-05-07)
Glutamate dehydrogenase (GDH) in human exists in GLUD1 and GLUD2 gene-encoded isoforms (hGDH1 and hGDH2, respectively), differing in their regulation and tissue expression pattern. Whereas hGDH1 is subject to GTP control, hGDH2 uses for its regulation, a novel molecular mechanism
Charles A Stanley
Neurochemistry international, 59(4), 465-472 (2010-12-07)
Glutamate dehydrogenase (GDH) has recently been shown to be involved in two genetic disorders of hyperinsulinemic hypoglycemia in children. These include the hyperinsulinism/hyperammonemia syndrome caused by dominant activating mutations of GLUD1 which interfere with inhibitory regulation by GTP and hyperinsulinism
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