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G2501

Sigma-Aldrich

L-Glutamic Dehydrogenase from bovine liver

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

Synonym(s):

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

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About This Item

CAS Number:
9029-12-3
Enzyme Commission number:
1.4.1.3 (BRENDA, IUBMB)
EC Number:
232-848-4
MDL number:
MFCD00131461
UNSPSC Code:
12352204
NACRES:
NA.54

type

Type I

Quality Level

200

form

ammonium sulfate suspension

specific activity

≥40 units/mg protein

mol wt

310-350 kDa

UniProt accession no.

P00366

storage temp.

2-8°C

Gene Information

cow ... GLUD1(281785)

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Biochem/physiol Actions

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.

Unit Definition

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.

Physical form

Suspension in 2.0 M (NH4)2SO4 solution

Analysis Note

Protein determined by biuret

substrate

Product No.
Description
Pricing

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

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Michisuke Yuzaki
The European journal of neuroscience, 32(2), 191-197 (2010-07-22)
Several C1q family members, especially the Cbln and C1q-like subfamilies, are highly and predominantly expressed in the central nervous system. Cbln1, a member of the Cbln subfamily, plays two unique roles at parallel fiber (PF)-Purkinje cell synapses in the cerebellum:
Cleanthe Spanaki et al.
Neurotoxicity research, 21(1), 117-127 (2011-11-01)
Glutamate dehydrogenase (GDH) catalyzes the reversible inter-conversion of glutamate to α-ketoglutarate and ammonia. High levels of GDH activity is found in mammalian liver, kidney, brain, and pancreas. In the liver, GDH reaction appears to be close-to-equilibrium, providing the appropriate ratio
Shanti Balasubramaniam et al.
Journal of pediatric endocrinology & metabolism : JPEM, 24(7-8), 573-577 (2011-09-22)
Hyperinsulinism-hyperammonemia syndrome (HI/HA) (OMIM 606762), the second most common form of congenital hyperinsulinism (CHI) is associated with activating missense mutations in the GLUD1 gene, which encodes the mitochondrial matrix enzyme, glutamate dehydrogenase (GDH). Patients present with recurrent symptomatic postprandial hypoglycemia
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
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)
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