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Key Documents

E2884

Sigma-Aldrich

Esterase from porcine liver

ammonium sulfate suspension, ≥150 units/mg protein (biuret)

Sinonimo/i:

Carboxyl esterase, Carboxylic-ester hydrolase, PLE

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

Porcine liver

Forma fisica

ammonium sulfate suspension

Attività specifica

≥150 units/mg protein (biuret)

PM

168 kDa

Temperatura di conservazione

2-8°C

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Descrizione generale

Esterase, also known as carboxyl ester hydrolase is a member of the hydrolase superfamily of enzymes.

Applicazioni

Esterase from porcine liver has been used to unmask the fluorescence in ultraviolet-visible spectroscopy.
The enzyme from Sigma has been used to develop an alternative gel-based protocol for screening for bead-bound catalytic activity in aqueous media. The product has also been used to investigate the properties of the compound L-valine-3-{8-[(E)-2-[3-methoxyphenyl)ethenyl]-7-methyl-1-propargylxanthine-3-yl}propyl ester hydrochloride (MSX-4, an aminoacid ester prodrug of the adenosine A2A receptor antagonist MSX-2).
Porcine liver esterase is used to catalyze the hydrolysis of pentaacetyl catechin and epicatechin for use in pharmaceutical and industrial applications.

Pig liver esterase is commonly used for kinetic resolutions and assymetric synthesis in organic chemistry.

Azioni biochim/fisiol

Esterase acts on water-soluble carboxyl esters containing short chain fatty acids. Its functionality is attributed to the catalytic triad of Ser, His and Asp/Glu.
Esterase enzyme of bacteria and fungi seems to have several industrial applications. It is capable of catalyzing the hydrolysis and synthesis of ester bonds.
Pig liver esterase catalyzes enantioselective conversion of an ester to a carboxylic acid. The molecular weight is found to be 168 kDa. It is a serine enzyme with two active sites on each molecule, which dissociates into active half-molecules in the presence of dilute acid or concentrated salts.

Definizione di unità

One unit will hydrolyze 1.0 μmole of ethyl butyrate to butyric acid and ethanol per min at pH 8.0 at 25 °C.

Stato fisico

Suspension in 3.2 M (NH4)2SO4, pH 8

Substrato

N° Catalogo
Descrizione
Determinazione del prezzo

Codice della classe di stoccaggio

12 - Non Combustible Liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificati d'analisi (COA)

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Articoli

Instructions for working with enzymes supplied as ammonium sulfate suspensions

Protocolli

Enzymatic Assay of Esterase

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