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Merck

76427

Penicillin Amidase from Escherichia coli

5-10 units/mg protein

Sinónimos:

Penicillin Acylase, Penicillin Amidohydrolase

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Número CAS:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-753-8
MDL number:
Número CE:
Specific activity:
5-10 units/mg protein
Biological source:
Escherichia coli
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biological source

Escherichia coli

form

suspension

specific activity

5-10 units/mg protein

mol wt

Mr ~70000

technique(s)

activity assay: suitable

application(s)

diagnostic assay manufacturing

storage temp.

2-8°C

Quality Level

General description

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.

Biochem/physiol Actions

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.

Other Notes

1 U corresponds to the amount of enzyme which hydrolyzes 1 μmol benzylpenicillin per minute at pH 7.6 and 37°C
Characterization; In enantioselective resolution; Synthesis of ampicillin and benzylpenicillin.

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Penicillin acylase (bacterial).
T A Savidge et al.
Methods in enzymology, 43, 705-721 (1975-01-01)
V Kasche et al.
Hoppe-Seyler's Zeitschrift fur physiologische Chemie, 365(12), 1435-1443 (1984-12-01)
Hydrophobic protein chromatography was used to prepare homogeneous fractions of penicillin amidase (EC 3.5.1.11) from E. coli. The apparent ratios of the rate constants for the deacylation of the acyl-penicillin amidase formed in the hydrolysis of phenylacetylglycine or D-phenylglycine methyl
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
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
A. Guy et al.
Bioorganic & Medicinal Chemistry Letters, 3, 1041-1041 (1993)

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