2I0M

Crystal structure of the phosphate transport system regulatory protein PhoU from Streptococcus pneumoniae

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	0.01M Zinc Sulfate, 0.1M MES, 25% W/V PEG MME550, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.52	51.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.547	α = 90
b = 88.965	β = 90
c = 75.79	γ = 90

Symmetry
Space Group	C 2 2 21

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 315	mirrors	2006-08-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.97980	APS	19-BM

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	2.4	56.25	98.66	0.1	17.76	8.8	9422	9296		2	45

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.46	99.15		0.47	2.97	8.5	704

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.4	32.72	9296	9296	465	98.66	0.23746	0.23746	0.23493	0.28624	RANDOM	46.108

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]
-0.28			-0.46		0.74

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.937
r_dihedral_angle_3_deg	19.758
r_dihedral_angle_4_deg	6.17
r_dihedral_angle_1_deg	6.136
r_scangle_it	2.519
r_scbond_it	1.664
r_angle_refined_deg	1.444
r_mcangle_it	0.975
r_mcbond_it	0.617
r_symmetry_hbond_refined	0.377
r_nbtor_refined	0.295
r_symmetry_vdw_refined	0.235
r_nbd_refined	0.222
r_xyhbond_nbd_refined	0.159
r_chiral_restr	0.118
r_symmetry_metal_ion_refined	0.038
r_metal_ion_refined	0.032
r_bond_refined_d	0.012
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1618
Nucleic Acid Atoms
Solvent Atoms	24
Heterogen Atoms	3

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-2000	data reduction
HKL-2000	data scaling
HKL-3000	phasing
SHELXE	model building
SOLVE	phasing
RESOLVE	phasing
ARP/wARP	model building