4V1X

The structure of the hexameric atrazine chlorohydrolase, AtzA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.3		THE PROTEIN (AFTER HIS-TAG REMOVAL) WAS CONCENTRATED TO 11 MG/ML AND SET IN A 1:1 RATIO, 200 NL PLUS 200 NL, WITH 50 MM HEPES PH 7.3, 4.6 % PEG 10,000.

Crystal Properties
Matthews coefficient	Solvent content
2.68	54.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 117.269	α = 90
b = 146.056	β = 90
c = 196.361	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC CCD		2014-07-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX2		Australian Synchrotron	MX2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.2	48.7	99.6	0.24	11.6	15.1		170140

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.24	99.2		1.15	3.2	15.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.2	117.19	161715	8345	99.46	0.16703	0.16553	0.19631	RANDOM	24.204

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.81			0.87		-0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.535
r_dihedral_angle_4_deg	17.527
r_dihedral_angle_3_deg	14.474
r_dihedral_angle_1_deg	6.05
r_scbond_it	4.096
r_mcangle_it	3.832
r_mcbond_it	2.621
r_mcbond_other	2.62
r_angle_refined_deg	1.675
r_angle_other_deg	1.388
r_chiral_restr	0.097
r_bond_refined_d	0.017
r_gen_planes_refined	0.011
r_bond_other_d	0.009
r_gen_planes_other	0.007
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	22046
Nucleic Acid Atoms
Solvent Atoms	887
Heterogen Atoms	48

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing