1.13.11.24: quercetin 2,3-dioxygenase

This is an abbreviated version!
For detailed information about quercetin 2,3-dioxygenase, go to the full flat file.

Word Map on EC 1.13.11.24

1.13.11.24

flavonols

dioxygenation

bicupins

o-heterocycle

oxygenolysis

synthesis

Reaction

2-(3,4-dihydroxybenzoyloxy)-4,6-dihydroxybenzoate

Synonyms

2,3-QD, 2,3QD, 2,4-QD, Co-QDO, Co-QueD, Cu2+-containing 2,4-QD, cupin domain-containing protein, Fe-QDO, Fe-QueD, flavonol 2,4-dioxygenase, flavonol 2,4-oxygenase, manganese quercetin 2,3-dioxygenase, manganese quercetin dioxygenase, Mn-QDO, Mn-QueD, Ni-QueD, nickel quercetinase, pirin, QDO, QdoI, QueD, quercetin 2,4-dioxygenase, quercetin dioxygenase, quercetinase, type III extradiol dioxygenase, VdQase, YxaG

ECTree

1 Oxidoreductases

1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)

1.13.11 With incorporation of two atoms of oxygen

1.13.11.24 quercetin 2,3-dioxygenase

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Results	in table
5	Activating Compound
2671	AA Sequence
1	Application
1	CAS Registry Number
11	Cloned(Commentary)
1	Cofactor
4	Crystallization (Commentary)
71	Disease/ Diagnostics
2	Expression
28	General Information
1	General Stability
48	Inhibitors
1	kcat/KM [mM/s]
7	Ki Value [mM]
23	KM Value [mM]
16	Localization
70	Metals/Ions
19	Molecular Weight [Da]
42	Natural Substrates/ Products (Substrates)
160	Organism
1	Pathway
58	PDB ID
7	pH Optimum
5	pH Range
1	pH Stability
3	pI Value
7	Posttranslational Modification
9	Protein Variants
12	Purification (Commentary)
8	Reaction
3	Reaction Type
56	Reference
8	Source Tissue
18	Specific Activity [micromol/min/mg]
3	Storage Stability
95	Substrates and Products (Substrate)
18	Subunits
76	Synonyms
1	Systematic Name
7	Temperature Optimum [°C]
12	Turnover Number [1/s]

Specific Activity

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Specific Activity on EC 1.13.11.24 - quercetin 2,3-dioxygenase

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0.0012

Bacillus subtilis

native enzyme, using quercetin as substrate, at 25°C, pH 7.5

711513

0.0276

Bacillus subtilis

recombinant enzyme, using fisetin as substrate, at 25°C, pH 7.5

1.5

25°C, pH 7.5

1.87

recombinant enzyme, using tamarixetin as substrate, at 25°C, pH 7.5

711513

137

Streptomyces sp. FLA

A2VA43

purified recombinant Ni2+-supplemented enzyme, pH 8.0, 30°C

144

Ni-QueD

175

purified recombinant Mn2+-supplemented enzyme, pH 8.0, 30°C

180

2.27

recombinant enzyme, using quercetin as substrate, at 25°C, pH 7.5

711513

2.49

Bacillus subtilis

recombinant enzyme, using galangin as substrate, at 25°C, pH 7.5

Co-QueD

purified recombinant Co2+-supplemented enzyme, pH 8.0, 30°C

Fe-QueD

55.7

purified recombinant Fe2+-supplemented enzyme, pH 8.0, 30°C

742192

Aspergillus japonicus

439537

additional information

Streptomyces sp.

high specific QueD activity is found in crude cell extracts when the growth medium is supplemented with NiCl2 or CoCl2, but not when Mn2+, Fe2+, Cu2+, or Zn2+ is added, the activity of the purified QueD proteins depends strongly on the nature of the metal ion cofactor

702220