1QFF

E. COLI FERRIC HYDROXAMATE UPTAKE RECEPTOR (FHUA) IN COMPLEX WITH BOUND FERRICHROME-IRON

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.4		pH 6.4

Crystal Properties
Matthews coefficient	Solvent content
4.6	72.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 171.4	α = 90
b = 171.4	β = 90
c = 85.7	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate		1998-07-26	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14		ESRF	BM14

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	2.7	46.94	98.9	0.079		5.9		39663			60.4

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	2.7	2.8	98		0.406		3.7

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	MAD	THROUGHOUT	2.7	30	38894	1676	98.3	0.231	0.231	0.276	RANDOM	64.9

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]
-17.21	1.64		-17.21		34.41

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	26.4
c_scangle_it	8.86
c_scbond_it	6.59
c_mcangle_it	6.38
c_mcbond_it	4.28
c_angle_deg	1.4
c_improper_angle_d	1.17
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5524
Nucleic Acid Atoms
Solvent Atoms	152
Heterogen Atoms	296

Software

Software
Software Name	Purpose
XSCALE	data scaling
CNS	refinement
CNS	phasing