2HTN

E. coli bacterioferritin in its as-isolated form

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	30% (v/v) PEG400, 0.2M MGCl2, 0.1 M Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 167.893	α = 90
b = 167.893	β = 90
c = 167.893	γ = 90

Symmetry
Space Group	P 21 3

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 4		2004-12-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.934	ESRF	ID14-2

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	2.3	74.54	99.8			69975	69835	2	2

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	2.3	2.42	98.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1BCF	2.5	59.34	54648	54540	5633	99.8	0.17243	0.17243	0.17059	0.18803	IN THIN SHELLS	22.727

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	46.235
r_dihedral_angle_4_deg	19.549
r_dihedral_angle_3_deg	13.021
r_scangle_it	13.009
r_scbond_it	11.931
r_mcangle_it	6.946
r_mcbond_it	6.734
r_angle_other_deg	2.027
r_dihedral_angle_1_deg	2.024
r_mcbond_other	1.59
r_angle_refined_deg	1.162
r_symmetry_vdw_other	0.432
r_symmetry_vdw_refined	0.38
r_symmetry_hbond_refined	0.325
r_nbd_refined	0.225
r_nbd_other	0.212
r_nbtor_refined	0.181
r_xyhbond_nbd_refined	0.149
r_metal_ion_refined	0.133
r_nbtor_other	0.089
r_chiral_restr	0.073
r_xyhbond_nbd_other	0.01
r_bond_refined_d	0.009
r_gen_planes_refined	0.005
r_bond_other_d	0.003
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10392
Nucleic Acid Atoms
Solvent Atoms	98
Heterogen Atoms	188

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
PHASER	phasing