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Literature summary extracted from

  • Hund, H.K.; Breuer, J.; Lingens, F.; Huttermann, J.; Kappl, R.; Fetzner, S.
    Flavonol 2,4-dioxygenase from Aspergillus niger DSM 821, a type 2 CuII-containing glycoprotein (1999), Eur. J. Biochem., 263, 871-878.
    View publication on PubMed

Crystallization (Commentary)

EC Number Crystallization (Comment) Organism
1.13.11.24
-
Aspergillus niger

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.13.11.24 diethyldithiocarbamate
-
Aspergillus niger
1.13.11.24 kojic acid
-
Aspergillus niger

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.13.11.24 0.0066
-
quercetin
-
Aspergillus niger

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.13.11.24 Cu 1-1.6 mol per mol enzyme, nonblue type 2 Cu2+ protein Aspergillus niger

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.13.11.24 26510
-
alpha 1 * 69574 + beta 1 * 51733 + gamma 1 * 26510, MALDI-TOF Aspergillus niger
1.13.11.24 51733
-
alpha 1 * 69574 + beta 1 * 51733 + gamma 1 * 26510, MALDI-TOF Aspergillus niger
1.13.11.24 69574
-
alpha 1 * 69574 + beta 1 * 51733 + gamma 1 * 26510, MALDI-TOF Aspergillus niger
1.13.11.24 135000
-
gel filtration Aspergillus niger

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.13.11.24 quercetin + O2 Aspergillus niger
-
2-protocatechoylphloroglucinolcarboxylate + CO
-
?

Organism

EC Number Organism UniProt Comment Textmining
1.13.11.24 Aspergillus niger
-
DSM 821, grown on rutin
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
1.13.11.24 glycoprotein N-linked oligo-mannose type glycan chains, 46-54% carbohydrate Aspergillus niger

Purification (Commentary)

EC Number Purification (Comment) Organism
1.13.11.24
-
Aspergillus niger

Source Tissue

EC Number Source Tissue Comment Organism Textmining

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 55.7
-
-
Aspergillus niger

Storage Stability

EC Number Storage Stability Organism
1.13.11.24 stable at -20°C Aspergillus niger

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.13.11.24 quercetin + O2
-
Aspergillus niger 2-protocatechoylphloroglucinolcarboxylate + CO
-
?

Subunits

EC Number Subunits Comment Organism
1.13.11.24 trimer alpha 1 * 69574 + beta 1 * 51733 + gamma 1 * 26510, MALDI-TOF Aspergillus niger

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.13.11.24 40
-
-
Aspergillus niger

pH Range

EC Number pH Minimum pH Maximum Comment Organism
1.13.11.24 2 6 Britton-Robinson buffer, composed of H3PO4, acetic acid, H3BO3 Aspergillus niger
1.13.11.24 5.5 6.7 50 mM MES buffer Aspergillus niger