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Merck

C0887

Sigma-Aldrich

Chlorperoxidase aus Caldariomyces fumago

buffered aqueous suspension, 1,000-2,000 units/mg protein (E1%/280)

Synonym(e):

Chlorid-Peroxidase

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About This Item

CAS-Nummer:
EC-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352204
NACRES:
NA.54

Biologische Quelle

fungus (Caldariomyces fumago)

Qualitätsniveau

Form

buffered aqueous suspension

Spezifische Aktivität

1,000-2,000 units/mg protein (E1%/280)

Mol-Gew.

42 kDa

Extinktionsverhältnis

RZ ~1.0

Lagertemp.

2-8°C

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Anwendung

A useful alternative to lactoperoxidase for 131I ion labeling studies, for bromination of proteins, and for 36Cl labeling of macromolecules in long-term isolation procedures.

Biochem./physiol. Wirkung

Chloroperoxidase (CPO) is a 42,000 Da extracellular heme glycoenzyme containing ferriprotoporphyrin IX as the prosthetic group. CPO is secreted from fungus and exhibits a broad spectrum of chemical reactivities. It is a peroxide-dependent chlorinating enzyme. It also catalyzes peroxidase-, catalase- and cytochrome P450-type reactions of dehydrogenation, H2O2 decomposition and oxygen insertion, respectively. The enzyme has magnetic and spectroscopic properties similar to that of cyctochrome P-450. CPO from the fungus Caldariomyces fumago has the capacity to chlorinate aromatic hydrocarbons, including polycyclic aromatic hydrocarbons (PAHs).

Einheitendefinition

One unit will catalyze the conversion of 1.0 μmole of monochlorodimedon to dichlorodimedon per min at pH 2.75 at 25 °C in the presence of potassium chloride and H2O2.

Physikalische Form

Purified suspension in 0.1 M sodium phosphate solution, pH approx. 4.5

Inhibitor

Produkt-Nr.
Beschreibung
Preisangaben

Lagerklassenschlüssel

12 - Non Combustible Liquids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

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


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R Vázquez-Duhalt et al.
Phytochemistry, 58(6), 929-933 (2001-10-31)
Chloroperoxidase from Caldariomyces fumago was able to chlorinate 17 of 20 aromatic hydrocarbons assayed in the presence of hydrogen peroxide and chloride ions. Reaction rates varied from 0.6 min(-1) for naphthalene to 758 min(-1) for 9-methylanthracene. Mono-, di- and tri-chlorinated
Daniel Andrew et al.
Biochemical and biophysical research communications, 415(4), 646-649 (2011-11-15)
Azide is a well-known inhibitor of heme-enzymes. Herein, we report the counter-intuitive observation that at some concentration regimes, incorporation of azide in the reaction medium enhances chloroperoxidase (CPO, a heme-enzyme) mediated one-electron abstractions from several substrates. A diffusible azidyl radical
Sudeep Kumar Gade et al.
Biochemical and biophysical research communications, 419(2), 211-214 (2012-02-22)
We report that incorporation of very low concentrations of redox protein cytochrome c and redox active small molecule vitamin C impacted the outcome of one-electron oxidations mediated by structurally distinct plant/fungal heme peroxidases. Evidence suggests that cytochrome c and vitamin
Chaonan Li et al.
Applied biochemistry and biotechnology, 165(7-8), 1691-1707 (2011-09-29)
Chloroperoxidase (CPO) is thought to be the most versatile heme-containing enzyme with enormous applications in organic synthesis, biotransformation, pharmaceutical production, and detoxification of environmental pollutants. Any improvement in the stability of this enzyme will greatly enhance its application in the
Marcela Ayala et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 16(1), 63-68 (2010-09-14)
Heme peroxidases are subject to a mechanism-based oxidative inactivation. During the catalytic cycle, the heme group is activated to form highly oxidizing species, which may extract electrons from the protein itself. In this work, we analyze changes in residues prone

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