3AW0

Structure of SARS 3CL protease with peptidic aldehyde inhibitor


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP62779-11%(w/v) PEG 20000, 100mM MES pH 6.0, 5mM DTT , VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthew coefficientSolvent content
3.3263

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 108.384α = 90
b = 81.606β = 104.24
c = 53.33γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray95CCDADSC QUANTUM 4r2010-01-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPHOTON FACTORY BEAMLINE BL-6A0.978Photon FactoryBL-6A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.35099.90.0820.08221.7867.320049-3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.32.341000.4690.4693.76.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2ZU52.332.222004919005101999.280.228040.224790.28636RANDOM52.451
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]
-0.040.09-0.05
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.655
r_dihedral_angle_4_deg18.477
r_dihedral_angle_3_deg16.805
r_dihedral_angle_1_deg7.481
r_scangle_it4.295
r_scbond_it2.878
r_mcangle_it1.956
r_angle_refined_deg1.895
r_mcbond_it1.059
r_chiral_restr0.135
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.655
r_dihedral_angle_4_deg18.477
r_dihedral_angle_3_deg16.805
r_dihedral_angle_1_deg7.481
r_scangle_it4.295
r_scbond_it2.878
r_mcangle_it1.956
r_angle_refined_deg1.895
r_mcbond_it1.059
r_chiral_restr0.135
r_bond_refined_d0.021
r_gen_planes_refined0.01
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_bond_other_d
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_sphericity_bonded
r_mcbond_other
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_rigid_bond_restr
r_sphericity_free
r_xyhbond_nbd_other
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2406
Nucleic Acid Atoms
Solvent Atoms52
Heterogen Atoms

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling