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Merck

G9880

Glutamic-Pyruvic Transaminase from porcine heart

ammonium sulfate suspension, ≥75 units/mg protein

Synonym(s):

ALT1, L-Alanine: 2-Oxoglutarate Aminotransferase, Alanine Aminotransferase (catalytic concentration), GPT

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About This Item

CAS Number:
NACRES:
NA.54
UNSPSC Code:
12352204
EC Number:
232-561-4
MDL number:
Beilstein/REAXYS Number:
3562140
EC Number:
Specific activity:
≥75 units/mg protein
Biological source:
Porcine heart
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biological source

Porcine heart

Quality Level

form

ammonium sulfate suspension

specific activity

≥75 units/mg protein

mol wt

42 kDa

foreign activity

L-glutamic dehydrogenase, lactic dehydrogenase and malic dehydrogenase ≤0.01%, glutamic-oxalacetic transaminase ≤0.05%

shipped in

wet ice

storage temp.

2-8°C

General description

Research area: Cell Signaling
Glutamic-pyruvic transaminase (GPT) is located in most cells in the body but is found in highest concentrations in the liver. Two GPT isoforms, GPT1 and GPT2, are present in mammals.

Application

Glutamic-Pyruvic Transaminase from porcine heart has been used to determine L-lactate levels in aqueous polyethylene glycol (PEG) solutions.

Biochem/physiol Actions

GPT is responsible for catalyzing the reversible transamination of α-ketoglutarate and alanine to glutamate and pyruvate. It also plays a critical role in the metabolism of amino acids and gluconeogenesis.
Glutamic-pyruvic transaminase (GPT) is located in most cells in the body, but is found in highest concentrations in the liver. It is used as a marker of liver disease due to the release of GPT into the blood following liver cell necrosis.

Physical form

Suspension in 1.8 M (NH4)2SO4 solution, pH 6.0

Analysis Note

Protein determined by biuret.

Other Notes

One unit will convert 1.0 μmole of α-ketoglutarate to L-glutamate per min at pH 7.6 at 37 °C in the presence of L-alanine.


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pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Articles

Instructions for working with enzymes supplied as ammonium sulfate suspensions


Detection of L-Lactate In Polyethylene Glycol Solutions Confirms Identity of Active Site Ligand in Proline Dehydrogenase Structure
Zhang M and Tanner JJ
Acta Crystallographica Section D, Biological Crystallography, 60(0 5), 985?986-985?986 (2004)
Paradoxical Inhibition of Glycolysis by Pioglitazone Opposes the Mitochondriopathy Caused by AIF Deficiency
Benit P, et al.
EBioMedicine, 17, 75?87-75?87 (2017)
Glutamic-Pyruvic Transaminase 1 Facilitates Alternative Fuels for Hepatocellular Carcinoma Growth?A Small Molecule Inhibitor, Berberine
Guo W, et al.
Cancers, 12(7), 1854-1854 (2020)