2CAD

NikR from Helicobacter pylori in closed trans-conformation and nickel bound to 2F, 2X and 2I sites.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6		0.9-1.0 M NA-FORMATE, 0.1 M NA-CITRATE PH 4.0. CRYSTAL WAS SOAKED IN MOTHER LIQUOR WITH 30% GLYCEROL AND 0.1 M NICKEL SULFATE DURING ONE DAY.

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.807	α = 90
b = 70.807	β = 90
c = 228.613	γ = 120

Symmetry
Space Group	P 61 2 2

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			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	2.3	61.31	100	0.09	6.8	7.9		16035

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	2.3	2.42	100		0.47	1.6	8.2

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	NIKR FROM HELICOBACTER PYLORI SOLVED BY SAD METHOD USING MERCURY DERIVATIVE.	2.3	61.31	15156	795	100	0.204	0.202	0.257	RANDOM	30.29

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]
0.1	0.05		0.1		-0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.252
r_dihedral_angle_4_deg	18.686
r_dihedral_angle_3_deg	17.238
r_dihedral_angle_1_deg	7.349
r_scangle_it	2.995
r_scbond_it	1.94
r_mcangle_it	1.683
r_angle_refined_deg	1.586
r_angle_other_deg	1.231
r_mcbond_it	0.979
r_symmetry_vdw_other	0.245
r_chiral_restr	0.228
r_nbd_refined	0.21
r_nbd_other	0.188
r_symmetry_vdw_refined	0.171
r_nbtor_refined	0.169
r_xyhbond_nbd_refined	0.166
r_symmetry_hbond_refined	0.153
r_nbtor_other	0.089
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
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	2107
Nucleic Acid Atoms
Solvent Atoms	118
Heterogen Atoms	46

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALEPACK	data scaling