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Literature summary for 1.11.1.18 extracted from

  • Krenn, B.E.; Plat, H.; Wever, R.
    Purification and some characteristics of a non-haem bromoperoxidase from Streptomyces aureofaciens (1988), Biochim. Biophys. Acta, 952, 255-260.
    View publication on PubMed

General Stability

General Stability Organism
dialysis of the enzyme preparation against 1 mM EDTA in 0.1 M citrate-phosphate buffer (pH 3.8) results in loss of enzymic activity. Incubation with vanadium, does not restore the enzymic activity. Also various other metal ions: Zn(II), Fe(II), Cu(II) and Mn(II) are ineffective in the reactivation of the preparation Kitasatospora aureofaciens

Inhibitors

Inhibitors Comment Organism Structure
F-
-
Kitasatospora aureofaciens
additional information not inhibited by azide or cyanide. Excess bromide or chloride has no effect on its brominating activity Kitasatospora aureofaciens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
8
-
H2O2
-
Kitasatospora aureofaciens
20
-
Br-
-
Kitasatospora aureofaciens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
32000
-
2 * 32000, SDS-PAGE Kitasatospora aureofaciens
65000
-
non-denaturing PAGE Kitasatospora aureofaciens

Organism

Organism UniProt Comment Textmining
Kitasatospora aureofaciens
-
ATCC 10762
-

Purification (Commentary)

Purification (Comment) Organism
-
Kitasatospora aureofaciens

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
65
-
-
Kitasatospora aureofaciens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Br- + H2O2 + 1,1-dimethyl-4-chloro-3,5-cyclohexanedione i.e. monochlorodimedone Kitasatospora aureofaciens ?
-
?

Subunits

Subunits Comment Organism
dimer 2 * 32000, SDS-PAGE Kitasatospora aureofaciens

Synonyms

Synonyms Comment Organism
non-haem bromoperoxidase
-
Kitasatospora aureofaciens

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
activity remains constant for at least 4 h Kitasatospora aureofaciens
70
-
slow inactivation Kitasatospora aureofaciens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.3
-
the pH optimum is independent of H2O2 and KBr when concentrations ranging from 5 to 100 mM Kitasatospora aureofaciens

Cofactor

Cofactor Comment Organism Structure
additional information enzyme does not contain haem Kitasatospora aureofaciens

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.00002
-
F-
-
Kitasatospora aureofaciens

pI Value

Organism Comment pI Value Maximum pI Value
Kitasatospora aureofaciens isoelectric focusing, pH-range 3-10
-
3.5