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76427

Sigma-Aldrich

Penicillin Amidase from Escherichia coli

5-10 units/mg protein

Synonyme(s) :

Penicillin Acylase, Penicillin Amidohydrolase

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About This Item

Numéro CAS:
9014-06-6
Numéro de classification (Commission des enzymes):
3.5.1.11 (BRENDA, IUBMB)
Numéro CE :
232-753-8
Numéro MDL:
MFCD00147869
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Source biologique

Escherichia coli

Forme

suspension

Activité spécifique

5-10 units/mg protein

Poids mol.

Mr ~70000

Technique(s)

activity assay: suitable

Application(s)

diagnostic assay manufacturing

Température de stockage

2-8°C

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Description générale

Penicillin amidase is a periplasmic 80K heterodimer with A and B chains (209 and 566 amino acids, respectively). It is widely distributed among microorganisms, including bacteria, yeast and filamentous fungi. Among all the sources, the enzyme produced by E. coli is most well-characterized and common for industrial application.

Application

Penicillin amidase was used to study its effect in release of fatty acid and HSL (homoserine lactone) from AHLs (N -acylhomoserine lactones) in degradation of antibiotics. It was used as positive control for assaying penicillin G acylase activity in the study of functional analysis of bile salt hydrolase and penicillin acylase family members in Lactobacillus sp. Penicillin amidase may be used for synthesis of 6-aminopenicillanic acid from penicillin-G and for the industrial production of β-lactam antibiotics.

Actions biochimiques/physiologiques

The biosynthesis of Penicillin amidase in E. coli by hydrophobic protein chromatography is an inducible reaction which is regulated by metabolized carbon source (e.g. polyols, carboxylic acid etc.). It is also influenced by catabolite repression. It catalyzes the formation of amide bonds through an acyl-enzyme intermediate.

Définition de l'unité

1 U corresponds to the amount of enzyme which hydrolyzes 1 μmol benzylpenicillin per minute at pH 7.6 and 37°C

Autres remarques

Characterization; In enantioselective resolution; Synthesis of ampicillin and benzylpenicillin

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Penicillin Acylase in the Industrial Production of ?-Lactam Antibiotics
Bruggink A, Roos EC, Vroom ED
Organic Process Research & Development, 2(2), 128-133 (1998)
A. Guy et al.
Bioorganic & Medicinal Chemistry Letters, 3, 1041-1041 (1993)
Lavinia Dunsmore et al.
Nature chemistry, 14(7), 754-765 (2022-06-29)
Natural products that contain ortho-quinones show great potential as anticancer agents but have been largely discarded from clinical development because their redox-cycling behaviour results in general systemic toxicity. Here we report conjugation of ortho-quinones to a carrier, which simultaneously masks
Ampicillin and cephalexin synthesis catalysed by E. coli penicillin amidase. Yield increase due to substrate recycling
Kasche, V
Biotechnology Letters, 7, 877-882 (1985)
Yi-Han Lin et al.
Molecular microbiology, 47(3), 849-860 (2003-01-22)
N-acylhomoserine lactones (AHLs) are used as signal molecules by many quorum-sensing Proteobacteria. Diverse plant and animal pathogens use AHLs to regulate infection and virulence functions. These signals are subject to biological inactivation by AHL-lactonases and AHL-acylases. Previously, little was known
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