2H85

Crystal Structure of Nsp 15 from SARS

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9	297	5-20% PEG 10000, 0.2M imidazole malate pH 9.0-10.0, VAPOR DIFFUSION, SITTING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
4.99	75.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 166.584	α = 90
b = 166.584	β = 90
c = 166.584	γ = 90

Symmetry
Space Group	P 43 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	MAR CCD 165 mm		2005-11-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.97938	ESRF	ID23-1

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	2.6	52	98.9	0.169	11.8	11.8	24505	24505

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	2.6	2.667	99.9		0.778	4	12

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.6	52.7	24505	23625	1266	100	0.2092	0.20758	0.24008	RANDOM	28.339

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.372
r_dihedral_angle_4_deg	22.562
r_dihedral_angle_3_deg	18.392
r_dihedral_angle_1_deg	6.135
r_scangle_it	2.066
r_scbond_it	1.33
r_angle_refined_deg	1.301
r_mcangle_it	0.826
r_angle_other_deg	0.772
r_mcbond_it	0.712
r_symmetry_hbond_refined	0.229
r_nbd_refined	0.194
r_symmetry_vdw_other	0.184
r_nbd_other	0.182
r_nbtor_refined	0.182
r_xyhbond_nbd_refined	0.173
r_symmetry_vdw_refined	0.114
r_nbtor_other	0.09
r_mcbond_other	0.082
r_chiral_restr	0.077
r_bond_refined_d	0.01
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2714
Nucleic Acid Atoms
Solvent Atoms	88
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
MOSFLM	data reduction
SHELXS	phasing