2FU4

Crystal Structure of the DNA binding domain of E.coli FUR (Ferric Uptake Regulator)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	293	100mM sodium acetate, 30%(v/v) PEG 200 containing 100mM CdCl2, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.35	47.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.5	α = 90
b = 159.27	β = 90
c = 28.65	γ = 90

Symmetry
Space Group	P 21 21 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	MARRESEARCH		2005-09-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.979637	ESRF	BM30A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.8	50	99.4	0.092	17.72	8.5		17195	2	2	16.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.9	97.1		0.329	6.2	8.4	22370

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	1.8	37.42	2	2	17195	863		0.17406	0.17406	0.1719	0.17	0.2148	0.21	RANDOM	16.613

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.963
r_dihedral_angle_4_deg	25.406
r_dihedral_angle_3_deg	13.347
r_sphericity_free	5.682
r_dihedral_angle_1_deg	4.652
r_scangle_it	3.212
r_sphericity_bonded	2.278
r_scbond_it	2.172
r_mcangle_it	1.353
r_rigid_bond_restr	1.347
r_angle_refined_deg	1.276
r_mcbond_it	1.031
r_xyhbond_nbd_refined	0.344
r_symmetry_hbond_refined	0.304
r_nbtor_refined	0.301
r_symmetry_vdw_refined	0.238
r_nbd_refined	0.227
r_metal_ion_refined	0.087
r_chiral_restr	0.085
r_symmetry_metal_ion_refined	0.054
r_bond_refined_d	0.011
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1282
Nucleic Acid Atoms
Solvent Atoms	160
Heterogen Atoms	26

Software

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