2BSH

Crystal structure of the type III secretion chaperone SycT from Yersinia enterocolitica (crystal form 2)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		277	1.8 M AMMONIUM SULFATE, 0.1 M SODIUM BICARBONATE PH 10.5, 50 MM MAGNESIUM CHLORIDE HANGING-DROP VAPOR DIFFUSION AT 4 CELSIUS DEGREE

Crystal Properties
Matthews coefficient	Solvent content
2.21	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.04	α = 90
b = 92.04	β = 90
c = 55.37	γ = 120

Symmetry
Space Group	P 62

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	MARRESEARCH		2004-09-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1		BESSY	14.1

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	1.9	79.81	99.5	16.6	11.2		21134

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	1.9	2	96.4		0.4	0.07	5.53	11.2

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	SAD	THROUGHOUT	1.9	79.81	20049	1085	100	0.176	0.174	0.22	RANDOM	23.26

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]
-0.73	-0.37		-0.73		1.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.971
r_dihedral_angle_4_deg	19.209
r_dihedral_angle_3_deg	13.936
r_dihedral_angle_1_deg	7.011
r_scangle_it	3.646
r_mcangle_it	3.388
r_scbond_it	2.751
r_mcbond_it	2.289
r_angle_refined_deg	1.875
r_nbtor_refined	0.323
r_nbd_refined	0.251
r_symmetry_vdw_refined	0.232
r_xyhbond_nbd_refined	0.184
r_symmetry_hbond_refined	0.172
r_chiral_restr	0.162
r_bond_refined_d	0.022
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_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_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1941
Nucleic Acid Atoms
Solvent Atoms	139
Heterogen Atoms

Software

Software
Software Name	Purpose
XDS	data reduction
XDS	data scaling
SHELX	phasing
CDE	phasing
REFMAC	refinement