2W5E

Structural and biochemical analysis of human pathogenic astrovirus serine protease at 2.0 Angstrom resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		100 MM MES PH 6.5, 1 M SODIUM SUCCINATE, 10 MM CDCL2

Crystal Properties
Matthews coefficient	Solvent content
4.71	70

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 135.047	α = 90
b = 135.047	β = 90
c = 189.955	γ = 120

Symmetry
Space Group	P 31 2 1

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 CCD			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1		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	20	98.1	0.1	9.2	3.7		132495

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	2.1	99.9		0.38	2.6	3.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	NONE	2	30	131058	1335	97.9	0.234	0.234	0.258	RANDOM	33.25

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]
0.57	0.29		0.57		-0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.734
r_dihedral_angle_4_deg	15.081
r_dihedral_angle_3_deg	12.936
r_dihedral_angle_1_deg	6.22
r_scangle_it	1.755
r_scbond_it	1.117
r_angle_refined_deg	1.058
r_mcangle_it	1.025
r_mcbond_it	0.595
r_xyhbond_nbd_refined	0.405
r_nbtor_refined	0.296
r_symmetry_hbond_refined	0.293
r_symmetry_vdw_refined	0.202
r_nbd_refined	0.2
r_chiral_restr	0.07
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
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	7374
Nucleic Acid Atoms
Solvent Atoms	336
Heterogen Atoms	46

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
SHARP	phasing