2HSW

Crystal structure of the uridine phosphorylase from Salmonella typhimurium in unliganded state at 1.99A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		297	VAPOR DIFFUSION, HANGING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
1.95	36.96

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 151.66	α = 90
b = 151.66	β = 90
c = 47.92	γ = 120

Symmetry
Space Group	H 3

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	MAR CCD 165 mm	mirrors	2005-11-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X13	0.8	EMBL/DESY, HAMBURG	X13

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	1.99	10				26389	26389

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.994	2.044

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.99	10	26389	26389	1389	99.96	0.19976	0.19976	0.1975	0.2424	RANDOM	32.025

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]
-1.81	-0.91		-1.81		2.72

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.758
r_dihedral_angle_3_deg	16.6
r_dihedral_angle_4_deg	16.018
r_dihedral_angle_1_deg	5.421
r_sphericity_free	4.132
r_scangle_it	2.693
r_scbond_it	2.157
r_rigid_bond_restr	1.985
r_sphericity_bonded	1.443
r_angle_refined_deg	1.287
r_mcangle_it	1.244
r_mcbond_it	1.016
r_nbtor_refined	0.295
r_nbd_refined	0.202
r_symmetry_vdw_refined	0.175
r_xyhbond_nbd_refined	0.13
r_symmetry_hbond_refined	0.116
r_chiral_restr	0.086
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3503
Nucleic Acid Atoms
Solvent Atoms	140
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
MOLREP	phasing