4V1Y

The structure of the hexameric atrazine chlorohydrolase, AtzA

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3HPA	PDB ENTRY 3HPA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.1		THE PROTEIN WAS CONCENTRATED TO 11.4 MG/ML AND SET UP IN A 1:1 RATIO, 150 NL PLUS 150 NL, WITH 50 MM HEPES PH 7.1, 2.7% DIETHYLENE GLYCOL, 5.5% PEG 8000

Crystal Properties
Matthews coefficient	Solvent content
2.56	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 117.487	α = 90
b = 195.564	β = 90
c = 283.882	γ = 90

Symmetry
Space Group	P 2 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		2014-05-10	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	2.8	49.5	100	0.23	8.8	7.5		161122

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	2.8	2.85	100		0.91	2.6	7.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB ENTRY 3HPA	2.8	161.05	153180	7864	99.95	0.1889	0.18742	0.21794	RANDOM	29.473

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]
-1.3			-1.42		2.72

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.234
r_dihedral_angle_4_deg	19.997
r_dihedral_angle_3_deg	16.441
r_dihedral_angle_1_deg	5.569
r_mcangle_it	2.761
r_scbond_it	2.403
r_angle_other_deg	2
r_mcbond_it	1.665
r_mcbond_other	1.665
r_angle_refined_deg	1.505
r_chiral_restr	0.079
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_gen_planes_other	0.004
r_bond_other_d	0.002
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	44161
Nucleic Acid Atoms
Solvent Atoms	161
Heterogen Atoms	110

Software

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