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G7509

Sigma-Aldrich

GABase from Pseudomonas fluorescens

lyophilized powder, Protein ≥30 % by biuret

Synonym(s):

GABase Enzyme, GABase from Pseudomonas, Pseudomonas GABase

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About This Item

MDL number:
UNSPSC Code:
12352204
NACRES:
NA.32

biological source

Pseudomonas fluorescens

Quality Level

Assay

≥30  % (biuret)

form

lyophilized powder

specific activity

≥0.5 units/mg protein

composition

Protein, ≥30% biuret

technique(s)

inhibition assay: suitable

storage temp.

−20°C

General description

Research area: Neuroscience


GABase is a commercially available mixture composed of γ-aminobutyric acid aminotransferase (GABGT) and succinic semialdehyde dehydrogenase (SSDH) obtained from Pseudomonas fluorescens.

Application

GABase from Pseudomonas fluorescens has been used for GABase assay to quantify the extracellular and intracellular concentration of GABA (γ-aminobutyric acid).

Biochem/physiol Actions

GABase catalyzes the conversion of γ-aminobutyric acid (GABA) to succinic acid in the central nervous system. It is used to measure GABA levels in various biological samples. p-Hydroxybenzaldehyde (HBA) is known to be a potential inhibitor on GABase.

Unit Definition

One unit will convert 1.0 μmole of γ-aminobutyric acid (GABA) to succinic semialdehyde and then to succinate per min with a stoichiometric reduction of 1.0 μmole of NADP+ at pH 8.6 at 25 °C.

Physical form

Partially purified lyophilized powder containing buffer salts and stabilizer

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Mingu Gordon Park et al.
Journal of enzyme inhibition and medicinal chemistry, 36(1), 2016-2024 (2021-09-14)
Many studies have focussed on modulating the activity of γ-aminobutyric acid transaminase (GABA-T), a GABA-catabolizing enzyme, for treating neurological diseases, such as epilepsy and drug addiction. Nevertheless, human GABA-T synthesis and purification have not been established. Thus, biochemical and drug
Kimon-Andreas G Karatzas et al.
Applied and environmental microbiology, 76(11), 3529-3537 (2010-04-20)
It is well established that the glutamate decarboxylase (GAD) system is central to the survival of Listeria monocytogenes at low pH, both in acidic foods and within the mammalian stomach. The accepted model proposes that under acidic conditions extracellular glutamate
Structural and Mechanistic Basis for the Inactivation of Human Ornithine Aminotransferase by (3 S,4 S)-3-Amino-4-fluorocyclopentenecarboxylic Acid
Shen S, et al.
Molecules (Basel), 28(3) (2023)
Nicolaie Moldovan et al.
Sensors and actuators. B, Chemical, 337 (2022-05-24)
Glutamate (GLU) and gamma-aminobutyric acid (GABA) are neurotransmitters (NTs) with an essential role in signal transmission in the brain. Brain disorders, such as epilepsy, Alzheimer's and Parkinson's diseases, and traumatic brain injury can be linked to imbalances in the GLU-GABA
GABase and glutaminase inhibitory activities of herbal extracts and acylated flavonol monoglycosides isolated from the leaves of Laurus nobilis L
Shimada A, et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 78(9-10), 377-381 (2023)

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