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Literature summary extracted from

  • Tranchimand, S.; Ertel, G.; Gaydou, V.; Gaudin, C.; Tron, T.; Iacazio, G.
    Biochemical and molecular characterization of a quercetinase from Penicillium olsonii (2008), Biochimie, 90, 781-789.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
1.13.11.24
-
Penicillium olsonii

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.13.11.24 1H-2-benzyl-3-hydroxy-4-oxoquinolin competitive Penicillium olsonii
1.13.11.24 diethyldithiocarbamate 100 nM, complete inhibition Penicillium olsonii

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.13.11.24 0.013
-
kaempferol pH 6, 25°C Penicillium olsonii
1.13.11.24 0.019
-
quercetin pH 6, 25°C Penicillium olsonii
1.13.11.24 0.02
-
galangin pH 6, 25°C Penicillium olsonii
1.13.11.24 0.085
-
fisetin pH 6, 25°C Penicillium olsonii

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.13.11.24 Cu contains 0.9 copper atoms per protein Penicillium olsonii

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.13.11.24 55000
-
1 * 55000, SDS-PAGE Penicillium olsonii
1.13.11.24 56000
-
gel filtration Penicillium olsonii

Organism

EC Number Organism UniProt Comment Textmining
1.13.11.24 Penicillium olsonii A7Y9J1
-
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
1.13.11.24 glycoprotein the purified enzyme is a mixture of at least four glycoforms Penicillium olsonii

Purification (Commentary)

EC Number Purification (Comment) Organism
1.13.11.24
-
Penicillium olsonii

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.13.11.24 culture condition:rutin-grown cell
-
Penicillium olsonii
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.13.11.24 175
-
-
Penicillium olsonii

Storage Stability

EC Number Storage Stability Organism
1.13.11.24 4°C, 6 months, the enzyme retains 81% of its initial activity Penicillium olsonii

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.13.11.24 fisetin + O2 16.8% of the activity with quercetin Penicillium olsonii ?
-
?
1.13.11.24 galangin + O2 21% of the activity with quercetin Penicillium olsonii ?
-
?
1.13.11.24 kaempferol + O2 activity is 2.18fold higher than with quercetin Penicillium olsonii ?
-
?
1.13.11.24 additional information flavonol, morin, 3,6-dihydroxyflavone and 3,7-dihydroxyflavone are transformed at a rate of less than 1% of that found for quercetin Penicillium olsonii ?
-
?
1.13.11.24 quercetin + O2
-
Penicillium olsonii 2-(3,4-dihydroxybenzoyloxy)-4,6-dihydroxybenzoate + CO
-
?

Subunits

EC Number Subunits Comment Organism
1.13.11.24 monomer 1 * 55000, SDS-PAGE Penicillium olsonii

Synonyms

EC Number Synonyms Comment Organism
1.13.11.24 quercetinase
-
Penicillium olsonii

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.13.11.24 40
-
quercetin oxidation Penicillium olsonii

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1.13.11.24 33.3
-
galangin pH 6, 25°C Penicillium olsonii
1.13.11.24 56.7
-
fisetin pH 6, 25°C Penicillium olsonii
1.13.11.24 166.7
-
quercetin pH 6, 25°C Penicillium olsonii
1.13.11.24 466.7
-
kaempferol pH 6, 25°C Penicillium olsonii

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.13.11.24 6.5
-
0.1 M MES buffer Penicillium olsonii

Ki Value [mM]

EC Number Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
1.13.11.24 0.004
-
1H-2-benzyl-3-hydroxy-4-oxoquinolin pH 6, 25°C Penicillium olsonii

pI Value

EC Number Organism Comment pI Value Maximum pI Value
1.13.11.24 Penicillium olsonii isoelectric focusing analysis of the purified enzyme reveals some heterogeneity since two major bands with apparent pI of 5.81 and 6.07 as well as two minor bands with apparent pI of 5.55 and 6.38 are observed. The purified enzyme is a mixture of at least four glycoforms
-
additional information