4IJY

Crystal Structure of the ETEC Secreted Protein CofJ

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	100 mM BisTris (pH 6.5), 200 mM NaI and 20% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.72	73.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 143.489	α = 90
b = 143.489	β = 90
c = 59.29	γ = 120

Symmetry
Space Group	P 31 2 1

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	MARMOSAIC 325 mm CCD		2008-02-22	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	MARMOSAIC 325 mm CCD		2008-07-22	M	MAD
3	1	x-ray	100	CCD	MARMOSAIC 325 mm CCD		2008-07-22	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.9790	SSRL	BL9-2
2	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.9100	SSRL	BL9-2
3	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.9794	SSRL	BL9-2

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	2.6	20	98.2			21847			3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	2.6	20	21847	20666	1123	100	0.21377	0.21229	0.24082	RANDOM	43.54

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]
-0.11	-0.06		-0.11		0.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.576
r_dihedral_angle_4_deg	21.658
r_dihedral_angle_3_deg	17.476
r_dihedral_angle_1_deg	6.246
r_scangle_it	1.875
r_angle_refined_deg	1.188
r_scbond_it	1.133
r_mcangle_it	0.65
r_mcbond_it	0.326
r_chiral_restr	0.087
r_bond_refined_d	0.009
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2461
Nucleic Acid Atoms
Solvent Atoms	59
Heterogen Atoms	32

Software

Software
Software Name	Purpose
Blu-Ice	data collection
SOLVE	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling