3CI0

The Crystal Structure of the GspK-GspI-GspJ complex from enterotoxigenic Escherichia coli Type 2 Secretion System

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	298	25-30% PEG 3350, 0.1M NA ACETATE (PH 5.0), 0.1M CACL2, vapor diffusion, sitting drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.118	α = 90
b = 96.118	β = 90
c = 108.436	γ = 90

Symmetry
Space Group	P 41 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 325 mm CCD		2007-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	1.54704	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.2	36.2	100	0.078	0.078	5.9	6.8		26464			46.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.32	100		0.537	0.537	1.4	5

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	MIRAS	THROUGHOUT	2.2	35.96	25040	1338	99.86	0.19492	0.19155	0.25942	RANDOM	55.68

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]
-1.3			-1.3		2.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.809
r_dihedral_angle_4_deg	15.681
r_dihedral_angle_3_deg	14.035
r_dihedral_angle_1_deg	6.246
r_scangle_it	2.718
r_scbond_it	2.031
r_angle_refined_deg	1.279
r_mcangle_it	1.111
r_angle_other_deg	0.896
r_mcbond_it	0.822
r_symmetry_hbond_refined	0.239
r_symmetry_vdw_other	0.21
r_nbd_refined	0.207
r_symmetry_vdw_refined	0.204
r_nbd_other	0.2
r_xyhbond_nbd_refined	0.178
r_nbtor_refined	0.173
r_mcbond_other	0.153
r_metal_ion_refined	0.141
r_nbtor_other	0.084
r_chiral_restr	0.074
r_xyhbond_nbd_other	0.032
r_bond_refined_d	0.013
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4108
Nucleic Acid Atoms
Solvent Atoms	190
Heterogen Atoms	4

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
SHARP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction