76427
Penicillin Amidase from Escherichia coli
5-10 units/mg protein
Synonyme(s) :
Penicillin Acylase, Penicillin Amidohydrolase
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A propos de cet article
Numéro CAS:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-753-8
MDL number:
Numéro CE :
Specific activity:
5-10 units/mg protein
Biological source:
Escherichia coli
Service technique
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Laissez-nous vous aiderbiological source
Escherichia coli
Quality Segment
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
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.
Classe de stockage
11 - Combustible Solids
Que se passe-t-il ?
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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