1.13.11.48: 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase

This is an abbreviated version, for detailed information about 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase, go to the full flat file.

Reaction

3-hydroxy-2-methyl-1H-quinolin-4-one
+
O2
=
N-acetylanthranilate
+
CO

Synonyms

1H-3-Hydroxy-4-oxoquinaldine 2,4-dioxygenase, 1H-3-hydroxy-4-oxoquinaldine oxygenase, 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase, HOD, HodC, More

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
                1.13.11.48 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase

Crystallization

Crystallization on EC 1.13.11.48 - 3-hydroxy-2-methylquinolin-4-one 2,4-dioxygenase

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Crystallization/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
N-terminally His6-tagged HOD is crystallized by the hanging-drop vapour-diffusion method using sodium/potassium tartrate as a precipitant and CuCl2 as an additive. The structure is solved by the single anomalous dispersion technique using data collected to 3.5 A resolution at the Cu absorption peak wavelength. The crystals belong to the primitive tetragonal space group P43212, with unit-cell parameters a = b = 153.788, c = 120.872 A; purified recombinant wild-type and mutants C69S and C69S/H251A N-terminally His6-tagged HOD, hanging drop vapour diffusion method, 50 mg/ml protein in 20 mM Tris-HCl pH 7.5, 100 mM NaCl, 2 mM EDTA, 1 mM DTT, is mixed with 1.65 M sodium/potassium tartrate, 0.1 M HEPES, pH 7.0, and 30 mM CuCl2, method optimization, X-ray diffraction structure determination and analysis at 3.5 A resolution, single anomalous dispersion technique
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