Experiment: 3EYY

Structural basis for the specialization of Nur, a nickel-specific Fur homologue, in metal sensing and DNA recognition

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	7	296.15	14% PEG 3350, 0.4M sodium malonate (pH 7), 0.1mM benzamidine hydrochloride, 0.1mM NiCl2, pH 7.0, Microbatch, temperature 296.15K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.164	α = 90
b = 79.164	β = 90
c = 49.732	γ = 120

Symmetry
Space Group	P 31

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 QUANTUM 210		2007-10-06	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-5A	1.4847, 1.4857, 1.4510	Photon Factory	BL-5A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.4	50	99.8				18205	1	1	27.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4		99.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.4	19.79	1.1	13583	13008	655	95.8	0.218	0.218	0.2226	0.264	0.2608	RANDOM	55.6

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]
2.46	2.59		2.46		-4.91

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.9
c_angle_deg	1.3
c_improper_angle_d	0.74
c_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1960
Nucleic Acid Atoms
Solvent Atoms	82
Heterogen Atoms	46

Software

Software
Software Name	Purpose
ADSC	data collection
SOLVE	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling