3F84

Structure of fusion complex of major pilin CfaB and major pilin CfaB of CFA/I pilus from ETEC E. coli

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION			The protein, 10 mg/ml in a buffer containing 20 mM Tris-HCl (pH 7.5) and 200 mM NaCl, was mixed in a 1:1 ratio with a well solution containing 30% PEG 8000 and 200 mM ammonium sulfate. VAPOR DIFFUSION

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.151	α = 90
b = 134.217	β = 90
c = 65.04	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	MARMOSAIC 300 mm CCD			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.000	APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.1	15		0.095	15.4	5.6		32280

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.35	15	27000	577	98.55	0.24356	0.24247	0.29392	RANDOM	14.834

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]
3.77			-0.54		-3.23

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.608
r_dihedral_angle_1_deg	10.274
r_dihedral_angle_4_deg	5.163
r_scangle_it	4.78
r_scbond_it	3.027
r_mcangle_it	1.775
r_angle_refined_deg	1.377
r_mcbond_it	0.961
r_nbtor_refined	0.264
r_nbd_refined	0.151
r_symmetry_vdw_refined	0.148
r_xyhbond_nbd_refined	0.13
r_chiral_restr	0.114
r_symmetry_hbond_refined	0.108
r_bond_refined_d	0.02
r_gen_planes_refined	0.016
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_3_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4398
Nucleic Acid Atoms
Solvent Atoms	174
Heterogen Atoms

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling