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3.8.1.8: atrazine chlorohydrolase

This is an abbreviated version!
For detailed information about atrazine chlorohydrolase, go to the full flat file.

Word Map on EC 3.8.1.8

Reaction

Atrazine
+
H2O
=
hydroxyatrazine
 +
chloride

Synonyms

atrazine chlorohydrolase, atrazine chlorohydrolase 2, atrazine dechlorinase, AtzA, AtzB, dechlorinase, atrazine (9CI), hydroxyatrazine N-ethylaminohydrolase, More, triazine hydrolase, TrZN

ECTree

     3 Hydrolases
         3.8 Acting on halide bonds
             3.8.1 In carbon-halide compounds
                3.8.1.8 atrazine chlorohydrolase

Crystallization

Crystallization on EC 3.8.1.8 - atrazine chlorohydrolase

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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
purified recombinant Zn2+-bound wild-type TrzN, and zinc-bound TrzN mutant E241Q complexed with ametryn or atratone, hanging drop method, for the wild-typeenzyme: 21 mg/ml TrzN in 25 mM MOPS, pH 5.5, and 1mM ZnCl2 with precipitant solution containing 25% PEG 3350, 0.1 M Bis-Tris, pH 5.5, 0.2 M ammonium sulfate, and 1 mM ZnCl2, 7-8 days at 25°C. For the mutant enzyme: 6.6 mg/ml TrzN-E241Q in 25 mM MOPS, pH 5.5, and 1 mM ZnCl2 with precipitant containing 30% PEG 4000, 0.1 M sodium citrate, pH 5.6, 0.2 M ammonium acetate, and 1 mM ZnCl2, 2 weeks at 25°C, soaking of crystals for 1 h in cryobuffer composed of its mother liquid, 15% glycerol, and excess of the ametryn or atratone powder, X-ray diffraction structure determination and analysis at 1.40 A, 1.93 A, and 1.64 A resolutions, respectively, modeling
-
purified recombinant detagged wildtype and mutant enzymes, mixing of 11.6 mg/ml protein in 50 mM HEPES, pH 7.5, and 100 mM NaCl with a reservoir solution containing 5.5% w/v PEG 8000, 2.7% v/v diethylene glycol, 50 mM HEPES, pH 7.1 or 50 mM HEPES pH 7.3, 4.6% w/v PEG 10 000, at 8°C, resulting in two different crystal forms, X-ray diffraction structure determination and analysis at 2.8 A and 2.2 A resolution, respectively, modeling