C0887
Chloroperoxidase from Caldariomyces fumago
buffered aqueous suspension, 1,000-2,000 units/mg protein (E1%/280)
Synonym(s):
Chloride Peroxidase, Chloride:hydrogen-peroxide oxidoreductase
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
biological source
fungus (Caldariomyces fumago)
Quality Level
form
buffered aqueous suspension
specific activity
1,000-2,000 units/mg protein (E1%/280)
mol wt
42 kDa
absorbance ratio
RZ ~1.0
storage temp.
2-8°C
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Application
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 Actions
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).
Unit Definition
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.
Physical form
Purified suspension in 0.1 M sodium phosphate solution, pH approx. 4.5
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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