2Q06

Crystal structure of Influenza A Virus H5N1 Nucleoprotein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	298	0.15 M KCl, 0.01 M MgCl2, 0.1 M cacodylate pH 6.2, 7% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.8	56.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 153.578	α = 90
b = 153.578	β = 90
c = 153.578	γ = 90

Symmetry
Space Group	P 21 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	ADSC QUANTUM 315	Mirror	2006-10-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97845	APS	19-ID

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	3.3	48.564	99.7	0.141	11.16	5	18405	18405			90.08

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	3.3	3.38	99.1		0.66	2.1	4.1	1192

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB entry 2IQH	3.3	46.32	18405	18379	945	99.72	0.206	0.206	0.202	0.279	RANDOM	93.109

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	33.445
r_dihedral_angle_3_deg	22.203
r_dihedral_angle_4_deg	18.669
r_dihedral_angle_1_deg	6.536
r_scangle_it	1.574
r_angle_refined_deg	1.236
r_scbond_it	0.872
r_mcangle_it	0.78
r_mcbond_it	0.432
r_nbtor_refined	0.336
r_symmetry_hbond_refined	0.301
r_nbd_refined	0.28
r_symmetry_vdw_refined	0.279
r_xyhbond_nbd_refined	0.238
r_chiral_restr	0.084
r_bond_refined_d	0.009
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7343
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
MOLREP	phasing